Three New Species of Pontellidae (Copepoda, Calanoida) From Coastal Waters of Java, Indonesia

Crustaceana ◽  
1997 ◽  
Vol 70 (6) ◽  
pp. 653-675 ◽  
Author(s):  

AbstractThree new species of the family Pontellidae, Labidocera javaensis, L. muranoi and Pontella labuanensis, are described and illustrated from specimens collected in coastal waters of Java, Indonesia, and their relationships to related species are discussed. Labidocera javaensis, which belongs to the Labidocera pectinata-group, is distinguishable from other species of this group by a combination of characters of the genital complex and the fifth legs in the female and of the fifth metasomal somite, the first urosomal somite, and the fifth legs in the male. It seems to be a neritic species inhabiting coastal waters shallower than 15 m in depth, and within 1 km offshore. Labidocera muranoi, which was collected from Cilacap Bay, a mangrove estuary facing the Indian Ocean, belongs to the Labidocera kroyeri-group and is distinguished from other species of this group by the urosomal somites and the fifth legs in the female and by the fifth metasomal somite and the fifth legs in the male. This may be an endemic species which has a preference for low salinities. Pontella labuanensis does not belong to any of the known three species-groups of Indo-West Pacific Pontella, in having the symmetrical genital somite and the exopods of the fifth legs virtually naked in the female, and the rostrum with double convex lenses and the exopods of the fifth legs with two subequal thumbs, in the male. The establishment of a new species-group, the P. labuanensis-group, is proposed.

1955 ◽  
Vol 3 (4) ◽  
pp. 545 ◽  
Author(s):  
WB Mather

Ten species of which six are new, of the genus Drosophila are described and figured: D. cancellata, sp. nov., D. enigma Mall., D. lativittata Mall., D. opaca, sp. nov., D. maculosa, sp. nov., D. levis, sp. nov., D. serrata Mall., D. takahashii Sturt., D. dispar, sp. nov., and D. versicolor, sp. nov. Laboratory cultures of these have been set up from single females fertilized in the wild, allowing descriptions of eggs, larvae, pupae, and certain internal structures and external anatomy of the adults. These species have been assigned to subgenera and species group and their geographical distribution is recorded, together with the known Queensland distribution of D. busckii Coq., D. melanogaster Meig., D. simulans Sturt., D. ananassae Dol., D. hydei Sturt., D. repleta Woll., D. immigrans Sturt., and D. spinofemora Patt. & Wheel. These 18 species are keyed. The taxonomy of the subgenus Pholadoris is discussed, and three new species groups established, namely, coracina, maculosa, and levis. A new species group within the subgenus Sophophora, namely, dispar, is established.


1992 ◽  
Vol 62 (1) ◽  
pp. 3-19 ◽  
Author(s):  
Eduardo Hajdu ◽  
Rob W.M. van Soest

Various records of A. simplex Carter, 1879 from the Atlantic are assigned to three new species of the sponge genus Asteropus Sollas, 1888, viz.: A. brasiliensis sp. n., A. vasiformis sp. n., and A. niger sp. n., whereas A. simplex s.s. is restricted to the Indo-Pacific. A worldwide study of Asteropus specimens resulted in the conclusion that two species groups exist, namely “simplex ”- like species (with true sanidasters), and “sarasinorum”- like species (with spiny microrhabds), as previously observed by Bergquist (1965, 1968). A newly discovered microsclere complement of trichodragmata in the first group strengthens the need for generic distinction of both lineages, and accordingly the name Melophlus Thiele, 1899 is reinstated for the “sarasinorum” species group. A key to the West Atlantic species of Asteropus is provided. The family allocation of Asteropus and associated genera in the Coppatiidae Topsent, 1898 is discussed, with the conclusion that the family is undoubtedly a polyphyletic assemblage related to various astrophorid groups (Hooper, 1986; Van Soest, 1991).


2000 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Mulyadi Mulyadi

One species of the family Candaciidae, Candaciaishimarui, and four species of the family Pontellidae, Calanopiaasymmetrica, Labidocerajavaensis, L. muranoi, and Pontellalabuanensis were described from specimens collected from the Indonesian waters. C. ishimarui belong to C. norvegica group, which was hitherto composed of 3 species, C. ketchumi Grice 1961, and C. norvegica (Boeck, 1865), by having common characters of the maxilla-shape, the 3 cups of basal mandibular tooth, and the structure of P5 in both sexes. C. asymmetrica, with belong to C. herdmani group, the character of the CR and P5. L. javaensis is distinguishable from the L. pectinaya group by the shape of genital complex and he P5 in the male. It seems to be a neritic species inhabiting coastal waters shallower than 15 m in depth, and with 0.5 km off-shore. L. muranoi which was collected from Cilacap Bay. Belongs to the L. kroyeri group, and was distinguished from other species of this group by the shape of urosome and P5 in the female and by Ms5 and P5 in the male. The last described species, P. labuanensisdoes not belong to anu of the known 3 species-groups of indo-West Pacific Pontella, in having the asymmetrical genital somite and the Resog the P5 virtually naked in the female, and the rostrum with double convex lenses and the Res of the male with P5 with 2 subequal dumb.


Zootaxa ◽  
2021 ◽  
Vol 5047 (2) ◽  
pp. 139-152
Author(s):  
SHUJUAN GE ◽  
XINGKE YANG ◽  
HAOYU LIU ◽  
YUXIA YANG

Two new species-groups of the cantharid genus Stenothmeus Bourgeois are defined, S. laterophysus species-group and S. notaticollis species-group. The S. laterophysus species-group is composed of two species, including S. laterophysus Švihla, 2004 and a new species, S. nigritibius Y. Yang et H. Liu, sp. nov., and characterized by the pitch black elytra and bicolored legs, the subrounded pronotum with widely rounded anterior angles and projecting posterior angles, male genitalia with slender ventral processes of parameres which are slightly bent inwards at apical parts, laterophyses tilting ventrally at an angle of more than 45° with dorsal plates, compressed at apical parts, as well as the slender spermathecal duct, extremely long spermatheca and diverticulum. The S. notaticollis species-group consists of five species, including S. notaticollis (Gorham, 1895), S. bourgeoisi Wittmer, 1974, S. tamil Švihla, 2011 and two new species, S. parameratus Y. Yang et S. Ge, sp. nov. and S. acutiapicis Y. Yang et X. Yang, sp. nov., which is differentiated from the S. laterophysus species-group by the more variable body coloration, elytra pitch black or black brown or pale-yellow, male genitalia with thick or flattened ventral processes of parameres which are diverging apically, laterophyses parallel to dorsal plates, expanded at apices, as well as the stout spermathecal duct, moderately long spermatheca and diverticulum. The above species are illustrated with photographs of habitus, male genitalia, abdominal sternites and internal genitalia of female. A key for the identification of these species is provided and a distribution map is presented.  


Author(s):  
Hiroyuki Yoshitomi

The endophallic structure of the genus Laius is studied and discussed based on the examination of 19 species from Asia to the Indian Ocean. The structure contains two primary sclerites (named gonoporal piece and ligula), a secondary sclerite on the basal part of the gonoporal piece (named additional sclerite) in some species, and a membranous basal area closely covered with many spines (named spinous area). Five species groups are recognized based on the morphology of the endophallic sclerites. The sympatric species have different body sizes and quite distinguishable endophallic sclerites (= different species group), while the allopatric species have overlapping body sizes and similar endophallic sclerites (= same species group). Three new species are described and six previously known species are redescribed with endophallic sclerites, and the descriptions of endophallic sclerites of the remaining ten species are added. The larva of Laius rodriguesensis sp. nov. is also described. The genus Nossibeus Evers, 1994 is synonymised with Laius Guérin-Méneville, 1830.


Zootaxa ◽  
2021 ◽  
Vol 5061 (2) ◽  
pp. 340-352
Author(s):  
MARCOS FIANCO ◽  
OSCAR J. CADENA-CASTAÑEDA ◽  
NEUCIR SZINWELSKI ◽  
LUIZ R. R. FARIA

Three new species of Anaulacomera are described, Anaulacomera (Anaulacomera) mariellae sp. n. and Anaulacomera (Anallomes) arlindoi sp. n., belonging respectively to the Inermis and Lanceolata species group, and Anaulacomera angelinae sp. n., placed as incertae sedis. The individuals were collected at the Iguaçu National Park and adjacent small fragments of Atlantic Forest, in southwestern Paraná state, Brazil. The description was based on external morphology of males. We also present distribution maps for the species of the Inermis and the Lanceolata species groups.  


Zootaxa ◽  
2021 ◽  
Vol 4942 (4) ◽  
pp. 583-591
Author(s):  
FABIANO STEFANELLO

The giant water bug fauna from tropical South America remains poorly known. Three species of Belostoma Latreille (Belostoma fittkaui De Carlo, B. sayagoi De Carlo and B. hirsutum Roback & Nieser) have been cited only a few times in the literature. These three species are remarkable since they represent an extreme variation for the genus, with article II of the labium distinctly shorter than article III. Here, the synonymy of B. hirsutum with B. sayagoi is proposed based on examination of type material and additional specimens. Further, B. fittkaui and B. sayagoi are redescribed, including discussion about comparative morphology with congeners. A new species group is proposed for these species and a key to the Belostoma species groups is provided. Distribution records are also updated. 


2020 ◽  
Vol 96 (2) ◽  
pp. 699-714
Author(s):  
Jong Guk Kim ◽  
Jimin Lee

The genus Smacigastes Ivanenko & Defaye, 2004 (Harpacticoida, Copepoda) is the most primitive genus in the family Tegastidae Sars, 1904, occurring in deep-sea chemosynthetic environments, such as hydrothermal vents, cold seeps, whale falls and wood falls. Our exploration of the Onnuri Vent Field, the sixth active hydrothermal vent system in the Central Indian Ridge, resulted in the discovery of a new species in the genus Smacigastes. A detailed morphological analysis of S. pumilasp. nov. reveals that it most resembles S. barti Gollner, Ivanenko & Martínez Arbizu, 2008, described from a hydrothermal vent in the East Pacific Ridge; the new species can be distinguished from the existing species by the 8-segmented female antennule, the absence of an abexopodal seta on the antennary basis, the mandibular exopod represented by a single seta and the exopod of the first leg with five setae. This is the first record of Smacigastes in the Indian Ocean. A dichotomous key to species of the genus Smacigastes worldwide is provided.


Zootaxa ◽  
2019 ◽  
Vol 4679 (2) ◽  
pp. 341-352
Author(s):  
TATIANA M. TIUNOVA ◽  
ALEXANDER A. SEMENCHENKO

A new species, Baetis pentaphyllus sp. nov., is described on the basis of larvae from the Far East of Russia (type locality Bolshoi Garmakan River). Larvae of Baetis pentaphyllus sp. nov. may be distinguished from other Baetis species by the presence of only five pairs of tergalii on segments III–VII. The mitochondrial COI sequence obtained from the described species was compared with the data present in GeneBank and BOLD. The DNA barcodes allowed discrimination of B. pentaphyllus sp. nov. from other species of Baetis with available sequence data. The average interspecific K2P distances were 10–15%, which are values well above those associated with intraspecific variation. COI sequences as well as 36 morphological larval characters were analysed using Bayesian inference to relate the described species to the recognized species-groups of the Baetis genus. B. pentaphyllus sp. nov formed a sister clade to B. vardarensis + B. lutheri which belong to the Baetis lutheri species-group. 


Sign in / Sign up

Export Citation Format

Share Document