Revision of the genus Centrophorus (Squaliformes: Centrophoridae): Part 2—Description of two new species of Centrophorus and clarification of the status of Centrophorus lusitanicus Barbosa du Bocage & de Brito Capello, 1864

Zootaxa ◽  
2017 ◽  
Vol 4344 (1) ◽  
pp. 86 ◽  
Author(s):  
WILLIAM T. WHITE ◽  
DAVID A. EBERT ◽  
GAVIN J.P. NAYLOR

Centrophorus specimens with a distinctive long-based first dorsal fin (long-finned species) have previously been considered to be Centrophorus lusitanicus first described from Portugal. Critical examination of the original description and illustration reveal that C. lusitanicus should be considered a junior synonym of C. granulosus. However, the specimen considered to be the syntype of C. lusitanicus in the Natural History Museum in London is clearly a long-finned species and not conspecific with C. granulosus. A more detailed investigation revealed that this specimen should not be considered a syntype and was likely not originally collected off the coast of Portugal. Investigation of long-finned specimens of Centrophorus from the Indo-West Pacific and Eastern Atlantic revealed that two undescribed species exist and are herein formally described as C. lesliei and C. longipinnis. The two species are similar morphologically and belong to the long-snout Centrophorus group (e.g. C. isodon and C. harrissoni) but are clearly separable based on their very long first dorsal fins. The two species differ in relative length of the first dorsal fin and several other characters. They also differ genetically. Nonmetric multidimensional ordination based on morphometric data reveals both species level and ontogenetic differences. A short erratum is also provided for Part 1 of this revision of the Centrophorus due to two figure related errors which may cause some confusion. 

Zootaxa ◽  
2018 ◽  
Vol 4504 (1) ◽  
pp. 105 ◽  
Author(s):  
MD. MIZANUR RAHMAN ◽  
MICHAEL NORÉN ◽  
ABDUR ROB MOLLAH ◽  
SVEN KULLANDER

Osteobrama cotio is considered to be a widespread species in India and Bangladesh. Mitochondrial DNA (COI, 16S rRNA) shows that populations from the Meghna River, Karnafuli and Sangu Rivers, Narmada River, and Godavari River are genetically distinct from each other. No morphological differences were found to separate Meghna and Karnafuli+Sangu populations, however. A putative new species, “Osteobrama serrata” has been described from the Barak River basin, stated to be distinguished from O. cotio by the presence of a serrated third dorsal-fin ray. The description of “O. serrata” does not fulfil requirements of the International Code of Zoological Nomenclature, (International Commission on Zoological Nomenclature 1999) and the name is thus unavailable. Published DNA sequences of “Osteobrama serrata” are identical to sequences of O. cotio from Bangladesh. As mentioned already in the original description, O. cotio has a serrated third dorsal-fin ray. 


Zootaxa ◽  
2018 ◽  
Vol 4410 (3) ◽  
pp. 525
Author(s):  
VÍCTOR HUGO DELGADO-BLAS ◽  
ÓSCAR DÍAZ-DÍAZ ◽  
JOSÉ M. VIÉITEZ

Re-assessment of spionid specimens from Iberian Peninsula initially assigned to Dispio uncinata Hartman, 1951 and Streblospio benedicti Webster, 1879 led to the recognition of two new species from the spionid genera Dispio and Streblospio from coasts around the Iberian Peninsula. Dispio elegans sp. nov. is characterised by having an oblanceolate-shaped prostomium. In addition, the first two notopodial postchaetal lamellae are serrated with digitiform papillae, the anterior neuropodial lamellae are smooth; all branchiae are almost completely fused to the notopodial lamellae, but with the tips free; the notochaetae on chaetiger 1 are smooth, alimbate capillaries; the ventral chaetae located in the position of the sabre chaetae on chaetigers 1–2 are smooth, alimbate capillaries, but becoming granulated on chaetiger 3; and the middle and posterior chaetigers are granulated and reticulated. Streblospio padventralis sp. nov. is characterized by lacking dorsal papillae between the branchiae of chaetiger 1; the hooks have 4–5 pairs of small teeth; sabre chaetae are present from chaetiger 3; the pygidium has two ventral lappets; and brooding structures are present in the coelomic cavities. We suggest raising the status of Streblospio benedicti japonica Imajima, 1990 to full species level as S. japonica Imajima, 1990. A key for Streblospio species is provided. 


Zootaxa ◽  
2018 ◽  
Vol 4486 (4) ◽  
pp. 435
Author(s):  
VITAL V. SAKHVON ◽  
ARKADY S. LELEJ

Nine species of genus Heteropogon Loew, 1847 are reviewed. Heteropogon ater Sakhvon sp. nov. (Kazakhstan, Tajikistan) and H. hiemalis Sakhvon sp. nov. (Turkmenistan) are described and illustrated. A new synonymy is proposed for Heteropogon filicornis (Loew, 1871) = Cyrtopogon leleji Lehr, 1998, syn. nov. The status of Heteropogon lugubris mesasiaticus Lehr, 1970 is upgraded to species level that of mesasiaticus. The distribution of some species is increased. A key to males of the species is given. 


Zootaxa ◽  
2017 ◽  
Vol 4250 (6) ◽  
pp. 587
Author(s):  
ORLEMIR CARRERETTE ◽  
JOÃO MIGUEL DE MATOS NOGUEIRA ◽  
PAT HUTCHINGS

The genus Thelepus Leuckart, 1849 is well known in Brazilian waters, from a species recorded by several authors as T. setosus (Quatrefages, 1866), which is considered to be a cosmopolitan species. However, the type locality of T. setosus is in France, which renders the presence of this species in Brazilian waters rather unlikely. The wide range of distribution of T. setosus is most likely due to misidentifications, especially because the original description of the species is very brief and does not include several characters now relevant at species level. We provide herein a redescription of the holotype of T. setosus and describe two new species from Brazilian material previously identified as belonging to that species. Thelepus megalabiatum n. sp. is characterised by having an expanded lower lip extending ventrally, many branchial filaments, originating from swollen cushions, with wide mid-dorsal gap between filaments within pairs, 26–33 segments with glandular areas, and 44–61+ pairs of notopodia. Thelepus brevitori n. sp. is characterised by having fewer branchial filaments, originating directly from the body wall, about 17 segments highly glandular ventrally, and up to 27 pairs of notopodia. Both new species are compared to the most similar congeners, including T. setosus. 


Zootaxa ◽  
2008 ◽  
Vol 1691 (1) ◽  
pp. 1 ◽  
Author(s):  
THOMAS H. FRASER

The status of Nectamia is re-examined. General morphology including gill arches, cephalic lateralis pores, dorsal-fin elements, scale characteristics and results from recent contributions support recognition as a genus rather than a subgenus. Nine species are removed from Ostorhinchus and placed in Nectamia. Neotypes are established for Apogon fuscus, the type species of Nectamia and for N. bandanensis. Four undescribed species, Nectamia ignitops, N. luxuria, N. similis, and N. viria, having been confused with N. bandanensis, N. fusca and N. savayensis. Two species, Nectamia annularis and N. zebrinus are endemic to the Red Sea. Meristics or morphometrics, absent good color patterns will not conclusively identify each species. A key to the species is provided. Four species are polymorphic with respect to number of gill rakers. Gill-raker variation can be associated with geographic patterns: Red Sea, East Africa plus Mascarene Plateau, China Sea, Indonesia plus Philippines, Palau to Wake I., and Southeast Indonesia-Coral Sea to Mangareva. Color patterns are used in an analysis of phylogeny of the species. Five names are treated as synonyms: Apogon erdmani, a synonym of Nectamia annularis and Apogon guamensis, Apogon nubilus, Apogon ocellatus, and Apogon spongicolus, as synonyms of N. fusca.


Zootaxa ◽  
2007 ◽  
Vol 1450 (1) ◽  
pp. 45-56 ◽  
Author(s):  
I. LINTHOINGAMBI ◽  
W. VISHWANATH

Puntius ater and P. khugae, two new species of fishes, each having a black longitudinal stripe on the side, are described from the Chindwin basin in Manipur, India.  Puntius ater, which inhabits sluggish streams is distinct in having the dorsal fin edge black, the lateral line incomplete with 5–11 pored scales, 25–29 scales in the lateral row; transverse scales ½4/1/4½; preanal scales 20; and a black blotch extending over the 19th and 20th scales of the lateral-line row at the level above the posterior end of the anal fin base.  Puntius khugae, inhabiting comparatively faster, clear-water streams is distinct in having the dorsal fin edge plain, the lateral line incomplete with 8–11 pored scales, 28–30 scales in the lateral row; transverse scales ½5/1/4½; preanal scales 19; and a black blotch on the 21st scale of the lateral-line row at the level above one scale behind the origin of the last anal fin ray. Morphological traits observed in P. ticto and P. stoliczkanus are given, and the status of these species is discussed


ZooKeys ◽  
2018 ◽  
Vol 741 ◽  
pp. 133-154 ◽  
Author(s):  
Cuong Huynh ◽  
Anneke A. Veenstra

Lophoturus queenslandicus Verhoeff, 1924 was the first penicillate millipede in the family Lophoproctidae collected from Cairns, a tropical region in Queensland, Australia, to be formally described. Specimens collected from this region in a recent study had the morphological characters known to define this genus. However, their body form and length, as well as dorsal colouration proved to be different, suggesting the possibility of more than one Lophoturus species. This assertion was supported by the results of a phylogenetic analysis of DNA extracted and sequenced using 18S and COI regions from L. queenslandicus and two undescribed species from this genus. Specimens preserved in ethanol can prove difficult to confidently identify to species level because their colour gradually fades. Examination of live specimens with their body colour visible, together with morphological characters and DNA analysis is the most reliable way of correctly distinguishing between these three species. Two new species, L. boondallus sp. n. and L. molloyensis sp. n. collected in Queensland, Australia are described.


Zootaxa ◽  
2020 ◽  
Vol 4750 (2) ◽  
pp. 151-181
Author(s):  
MOHAMMAD EUSUF HASAN ◽  
JEAN-DOMINIQUE DURAND ◽  
YUKIO IWATSUKI

The taxonomic status of the Bay of Bengal nominal sparid species Coius datnia Hamilton, 1822 and Acanthopagrus longispinnis (Valenciennes, 1830) are reviewed and investigated both morphologically and genetically. Because of inadequate description and no type specimen, Coius datnia has recently been considered to belong to Sparidentex, a genus without molarifom teeth. Critical examination of the original description and examination of specimens from the type locality and adjacent areas reveal that Coius datnia belongs to Acanthopagrus, a genus with an inner series of molars. Furthermore, examination of specimens previously recognized as Acanthopagrus longispinnis (Valenciennes 1830), and recent collection of fresh specimens from lower Ganges estuary in Bangladesh, show that morphological differences between Acanthopagrus datnia and A. longispinnis are minor, and they are genetically identical. The longer second anal-fin spine in A. longispinnis (>21% SL) is, in fact, a feature of some younger A. datnia. Accordingly, A. datnia is regarded as a senior synonym of A. longispinnis, and is distinguished from its congeners by the presence of 12 dorsal-fin spines (rarely 11 or 13), 3½ scale rows between the fifth dorsal-fin spine base and lateral line, pelvic and anal-fins pale yellow to yellow with black streaks present in the interradial membranes of anal-fin rays, and caudal fin grey or yellowish grey. A neotype (and neogenotype) has been designated for Acanthopagrus datnia (Hamilton, 1822). 


Zootaxa ◽  
2013 ◽  
Vol 3616 (1) ◽  
pp. 95-98 ◽  
Author(s):  
MARTIN FIKÁČEK ◽  
SAVERIO ROCCHI

Cercyon bononiensis Chiesa, 1964 was described from two specimens collected in northern Italy in 1924–1925. For some time, these specimens were identified as C. inquinatus Wollaston, 1854. Only 40 years later, having examined the type of the latter species, Chiesa (1964) realized that the two specimens belonged to an undescribed species that he then described as Cercyon bononiensis. Based on the chagrined elytra mentioned in the original description, C. bononiensis has been placed in the Cercyon tristis group by subsequent authors. Recently, we examined a small number of Cercyon specimens from northern Italy and surprisingly found two specimens of C. hungaricus Endrödy-Younga, 1967, an easily recognizable member of the C. tristis group which was previously considered a Pannonian endemic by Fikáček et al. (2009) but was recently also found in northern Germany (Bäse 2010). The presence of this unusual species led us to question whether C. hungaricus might be conspecific with C. bononiensis. This was subsequently confirmed by the study of the types of both species. Here, we provide a summary of our studies and synonymize C. hungaricus with C. bononiensis. Examined specimens are deposited in the following collections: Hungarian Natural History Museum, Budapest, Hungary (HNHM), Museo Civico di Storia Naturale Milano, Italy (MSNM), collection of S. Rocchi at the Museo di Storia Naturale dell'Università di Firenze, Sezione di Zoologia "La Specola" (CRO).


Zootaxa ◽  
2007 ◽  
Vol 1546 (1) ◽  
pp. 1-14 ◽  
Author(s):  
GERGELY VÁRKONYI ◽  
ANDREW POLASZEK

The bethylid genus Foenobethylus Kieffer, 1913, unstudied for almost a century, is redescribed and assigned to the subfamily Pristocerinae based on a preliminary phylogenetic assessment. Four new species: F. bidentatus n. sp. (Brunei), F. elongatus n. sp. (Malaysia), F. emiliacasellae n. sp. (Thailand), and F. thomascokeri n. sp. (Malaysia) are described, based on males only, as females remain unrecognised in this genus. All specimens are deposited in the Department of Entomology, the Natural History Museum, London, U.K. The type species F. gracilis Kieffer (Philippines), although unrepresented by any traceable specimen, can be distinguished from these species based on the original description. A key to the five known species of Foenobethylus is provided.


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