Two new species of Pseudoscopelus (Teleostei: Chiasmodontidae), with a new diagnosis for the genus

Zootaxa ◽  
2007 ◽  
Vol 1605 (1) ◽  
pp. 33-46 ◽  
Author(s):  
MARCELO R.S. MELO ◽  
H. J. WALKER ◽  
CYNTHIA KLEPADLO
Keyword(s):  
New Species ◽  
Deep Sea ◽  
Dorsal Margin ◽  
Dorsal Edge ◽  
As Species ◽  
Infraorbital Canal ◽  
Two New Species ◽  
New Diagnosis ◽  
Sea Fish ◽  
The Western Pacific

Two new species of the deep-sea fish genus Pseudoscopelus are described, P. lavenbergi from the eastern Pacific, and P. bothrorrhinos from the western Pacific and Indian Oceans. A new diagnosis for Pseudoscopelus based on two synapomorphies is proposed: the dorsal margin of the orbit is formed by infraorbital 6; the last pore of the infraorbital canal is on the dorsal edge of the orbit, anterior to the middle of the pupil. Twelve species of the genus are considered valid, with P. microps confirmed as a junior synonym of P. altipinnis, and P. stellatus regarded as species inquerida.

Morphology and phylogenetic analysis of two new species of deep-sea golden gorgonians (Cnidaria: Octocorallia: Chrysogorgiidae) from seamounts in the Western Pacific Ocean

Zootaxa ◽  
2020 ◽  
Vol 4731 (2) ◽  
pp. 249-262
Author(s):  
YU XU ◽  
ZIFENG ZHAN ◽  
YANG LI ◽  
KUIDONG XU
Keyword(s):  
New Species ◽  
Water Depth ◽  
Deep Sea ◽  
Phylogenetic Analyses ◽  
Western Pacific ◽  
Western Pacific Ocean ◽  
Tropical Western Pacific ◽  
Two New Species ◽  
Close Relationship ◽  
The Western Pacific

Two new species of deep-sea chrysogorgiid gorgonians are described from the tropical Western Pacific: Iridogorgia densispicula n. sp. from an unnamed seamount in the Caroline Plate with water depth of 1204 m and Iridogorgia squarrosa n. sp. from an unnamed seamount near the Mariana Trench with water depth of 1458 m. Iridogorgia densispicula n. sp. has a slender stem with bud-like polyps, dense sclerites in polyps and branches, spindle-like scales in polyp bases, and long rods in tentacles. Iridogorgia squarrosa n. sp. has a brown to nearly black axis, large polyps with eight obvious columns, elongated scales in the back of tentacles, and special scales at base of polyps with many sculptures. By the combination of these features, the two new species differ distinctly from each other and all other congeners. Phylogenetic analyses indicate that I. densispicula n. sp. is sister to all other Iridogorgia Verrill, 1883, while I. squarrosa n. sp. showed close relationship with I. splendens Watling, 2007. 

A revaluation of the Eurycopinae (Crustacea, Isopoda, Munnopsidae) with a description of Dubinectes gen. nov. from the southern Atlantic deep sea

Zootaxa ◽  
2006 ◽  
Vol 1272 (1) ◽  
pp. 1 ◽  
Author(s):  
MARINA MALYUTINA ◽  
ANGELIKA BRANDT
Keyword(s):  
New Species ◽  
Southern Ocean ◽  
Deep Sea ◽  
Posterior Margin ◽  
New Genus ◽  
Weddell Sea ◽  
Large Head ◽  
Two New Species ◽  
Genus Two ◽  
New Diagnosis

A new genus of Eurycopinae (Munnopsidae), Dubinectes gen. nov., is described for Eurycope acutitelson Menzies, 1962, E. nodosa Menzies, 1962 and two new species, collected from the Weddell Sea, Southern Ocean. The new genus is distinguished by the distinctive shape of the pleotelson posterior margin and the uropod protopod angled at midlength, along with the robust, long rostrum of a large head, overhanging frons, reduced distomedial lobe of article 1 of antenna 1, the produced male pleopod 1 distolateral lobes and the distinct shape of the male pleopod 2. Descriptions of the new genus, two new species and redescriptions of two previously described species are presented, as well as a new diagnosis of the subfamily Eurycopinae, the genus Eurycope and a key to the genera of Eurycopinae.

New western Pacific records of Homolidae De Haan, 1839, with descriptions of new species of Homolochunia Doflein, 1904, and Latreillopsis Henderson, 1888 (Crustacea: Decapoda: Brachyura)

Zootaxa ◽  
2008 ◽  
Vol 1967 (1) ◽  
pp. 1-35 ◽  
Author(s):  
BERTRAND RICHER DE FORGES ◽  
PETER K. L. NG
Keyword(s):  
New Species ◽  
Deep Sea ◽  
Solomon Islands ◽  
The Philippines ◽  
Western Pacific ◽  
Two New Species ◽  
The Western Pacific

Several species of rarely reported deep-sea homolid crabs are recorded from various locations in the western Pacific: Homola ikedai, H. mieensis, H. coriolisi, Homolomannia occlusa, Homolochunia kullar, H. valdiviae, H. gadaletae, Lamoha superciliosa, L. longipes, L. longirostris, L. inflata and Yaldwynopsis saguili. Two new species are described as new, Homolochunia menezi n. sp., from the Solomon Islands and Latreillopsis trispinosa n. sp. from the Philippines.

Two new species in the Ficinia indica complex (Cyperaceae, tribe Cypereae) from South Africa

Phytotaxa ◽  
2017 ◽  
Vol 295 (1) ◽  
pp. 49
Author(s):  
ALUWANI A. TSHIILA ◽  
SAMSON B.M. CHIMPHANGO ◽  
JAN-ADRIAAN VILJOEN ◽  
A. MUTHAMA MUASYA
Keyword(s):  
New Species ◽  
Region Growing ◽  
Distinct Species ◽  
Cape Floristic Region ◽  
Morphological Data ◽  
Similar Species ◽  
Ecological Features ◽  
Dichotomous Key ◽  
As Species ◽  
Two New Species

Unclear boundaries between species hinder identification in the field and in herbaria, especially in species groups that can only be distinguished on the basis of subtle morphological and ecological features. One such taxon is Ficinia indica, widespread in the Greater Cape Floristic Region, growing on deep sandy soils between sea level and 1000 m elevation. Within its range, several phylogenetically related and morphologically similar species co-occur or occupy distinct habitats. Studies in herbaria show species in the Ficinia indica complex to be largely misidentified based on the use of qualitative information. Here, we investigate whether the six taxa recognized, based on one or a few characters, are supported as distinct species based on multivariate analysis of macro-morphological data. Two of the taxa were mostly separated whereas the other four taxa overlapped in multivariate space, but all the taxa could be distinguished using a single or a combination of morphological and ecological characters. We uphold the four previously recognized taxa (Ficinia argyropus, F. elatior, F. indica, F. laevis) as species, describe two new species (F. arnoldii and F. montana), and provide a dichotomous key for their identification.

Comments on “Is Copytus Skogsberg, 1939 (Crustacea: Ostracoda) a neocytherideid? With description of a new family and two new species” by Coimbra, Bergue & Ramos (2020)

Zootaxa ◽  
2021 ◽  
Vol 4950 (2) ◽  
pp. 398-400
Author(s):  
OKAN KÜLKÖYLÜOĞLU
Keyword(s):  
New Species ◽  
Integrated Approach ◽  
Taxonomic Position ◽  
New Family ◽  
As Species ◽  
Diagnostic Characteristics ◽  
The Family ◽  
Two New Species

Most recently, Coimbra et al. (2020) published an article in this journal (Zootaxa, 4729 (2): 177–194) questioning the taxonomic position of the genus Copytus Skogsberg, 1939 (Crustacea, Ostracoda) along with proposing it as the type genus of their new family (Copytidae Coimbra et al., 2020), and erecting two new species that were listed by previous authors as Copytus sp. 1 and Copytus sp. 2. The main diagnostic characteristics of their new proposed family (and the genus Copytus) are the hinge type and muscle scars on the carapace and/or valves (see lines 6–8 from the bottom, p. 179 in Coimbra et al. 2020). They also underlined that (p. 179) “...this study is based exclusively on the morphology of the animals’ hard parts”. While the authors considered another genus (Neocopytus) proposed by Külköylüoğlu, Colin & Kılıç (2007) of the family Neocytherididae as invalid, they interestingly transferred some species of Neocopytus to Copytus as species of their new family (Coimbra et al. 2020). Herein, my point with the comments listed below is to clarify that, when possible, both soft and hard parts should be considered in taxonomy, and such an integrated approach clearly indicates that Neocopytus is a valid and taxonomically useful genus. 

Two new species of Cossura (Cossuridae, Annelida) from the terminal lobes of the Congo River deep-sea fan

2017 ◽  
Vol 97 (5) ◽  
pp. 881-888
Author(s):  
Anna Zhadan
Keyword(s):  
New Species ◽  
Deep Sea ◽  
Anterior Margin ◽  
Posterior Part ◽  
Entire Body ◽  
Congo River ◽  
Two New Species ◽  
Dark Pigmentation ◽  
Sea Fan ◽  
Scanning Electron

Two new species of Cossura Webster & Benedict, 1887 were found in material collected during sampling from the terminal lobes of the Congo deep-sea fan. They were described using light and scanning electron microscopy. Cossura platypus sp. nov. has 15–17 thoracic chaetigers, a prostomium longer than it is wide, with a widely rounded anterior margin, an abruptly expanded posterior prostomial ring the same length as the peristomium, without a mid-ventral notch, a branchial filament attached to the midlength of chaetiger 3, and a pygidium with three anal cirri. Cossura platypus sp. nov. is similar to C. brunnea Fauchald, 1972 but differs in the shape of the prostomium, which is widely rounded anteriorly in C. platypus sp. nov. and is broadly triangular in C. brunnea; furthermore, C. platypus sp. nov.is uniformly pale, whereas C. brunnea has dark pigmentation. Cossura candida Hartman, 1955 differs from C. platypus sp. nov. in the conical shape of the prostomium and 24–35 thoracic chaetigers. Cossura flabelligera sp. nov. has 16–19 thoracic chaetigers, a conical prostomium, and a branchial filament arising from the posterior part of chaetiger 2; the entire body, including the chaetae, is covered by a thick mucous sheath similar to the tunic of flabelligerids. Cossura flabelligera sp. nov. resembles C. longocirrata Webster & Benedict, 1887 in the position of the branchial filament, the shape of the prostomium, and the number of thoracic chaetigers; it differs in having a thick mucous sheath. This character seems to be unique for the Cossuridae.

Two New Species of Sandersiella (Cephalocarida), Including One From the Deep Sea 1)

Crustaceana ◽  
1973 ◽  
Vol 24 (2) ◽  
pp. 181-196 ◽  
Author(s):  
Howard L. Sanders ◽  
Robert R. Hessler
Keyword(s):  
New Species ◽  
Deep Sea ◽  
Two New Species
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