Six new species of Archimonocelididae Meixner, 1938 (Platyhelminthes, Proseriata) from the Pacific, with proposal of a new genus

Zootaxa ◽  
2021 ◽  
Vol 4965 (3) ◽  
pp. 515-528
Author(s):  
MARCO CURINI-GALLETTI ◽  
ERNEST R. SCHOCKAERT
Keyword(s):  
New Species ◽  
New Genus ◽  
South Australia ◽  
Ventral Side ◽  
Copulatory Organ ◽  
Dorsal Side ◽  
The Pacific ◽  
Eastern Australia ◽  
The Pacific Ocean ◽  
The Caribbean

The genus Tajikacelis n. gen. is introduced for species of Archimonocelididae (Proseriata) characterized by the lack of atrial spines in the copulatory organ and by the opening of the seminal vesicles into the prostate vesicle at its ventral side. Six new species from the Pacific Ocean are ascribed to the new genus; they may be distinguished by features of the genital systems and the morphology of their copulatory stylets. T. tajikai n. sp. (type species of the new genus) and T. macrostomoides n. sp., both from eastern Australia, have a long tubular stylet. In T. macrostomoides n. sp., the stylet is more curved, bending to 180°, and has a narrower basis compared to that of T. tajikai n. sp. In T. artoisi n. sp., from Hawai’i, and T. nematoplanoides n. sp., from South Australia, the stylet is shaped as a truncated cone, with a broad, oblique proximal opening and a very short tubular part. T. artoisi n. sp. is distinct for the much stronger thickening of the dorsal side of the stylet, and for the different shape of the proximal opening. In T. acuta n. sp. and T. truncata n. sp., from West Panama, the tubular stylet is comparatively short; the two species differ for the shape of the distal opening, produced into a sharp spike in T. acuta n. sp., and square-ended in T. truncata n. sp.. Two species previously described in the genus Archimonocelis are transferred to Tajikacelis n. gen.: T. itoi Tajika, 1981 from Japan and T. keke Martens and Curini-Galletti, 1989 from Sulawesi (Indonesia). The taxonomic position of the problematic Archimonocelis glabrodorsata Martens and Curini-Galletti, 1989 from the Caribbean is discussed. The relationships of and within the genus Tajikacelis n. gen. are discussed and compared with recent results based on DNA studies. 

Revision of Spinosphaera and establishment of the new genus Hutchingsiella (Polychaeta: Terebellidae: Terebellinae)

2003 ◽  
Vol 83 (4) ◽  
pp. 747-759 ◽  
Author(s):  
Mario H. Londoño-Mesa
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Western Australia ◽  
New Genus ◽  
Caribbean Region ◽  
Caribbean Coast ◽  
The Pacific ◽  
Mexican Caribbean ◽  
The Pacific Ocean ◽  
Three New Species

Spinosphaera is a Terebellinae genus with three species described from the Pacific Ocean, S. pacifica from Japan, S. oculata from California, and the doubtful S. cowarrie from Western Australia. The genus is presently unknown in the Grand Caribbean region. Spinosphaera is characterized by the absence of branchiae, by the great number of notopodia, and the presence of a special type of notochaetae, called ‘Spinosphaera-chaeta’. These chaetae have three different regions: distal denticulate blade, neck separating the former from a middle swollen spinous region, and a proximal smooth or bilimbate region; two sizes are present. The genus is redefined, with redescription of all species currently known. Three new species are described here, two from the Mexican Caribbean coast, S. hutchingsae and S. carrerai, and one from California, S. harrisae. A taxonomic key to identify all species is given. Hutchingsiella gen. nov. is proposed for S. cowarrie; it differs from Spinosphaera in having notochaeta from segment 5 and neurochaetae from segment 6, and for lacking Spinosphaera chaeta.

scholarly journals Checklist of eels of Taiwan (orders Anguilliformes and Saccopharyngiformes): An update

Zootaxa ◽  
2018 ◽  
Vol 4454 (1) ◽  
pp. 5
Author(s):  
HSUAN-CHING HO ◽  
DAVID G. SMITH ◽  
KENNETH A. TIGHE ◽  
YUSUKE HIBINO ◽  
JOHN E. MCCOSKER
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
New Genus ◽  
Special Issue ◽  
The Pacific ◽  
The World ◽  
The Pacific Ocean

The eel fauna (orders Anguilliformes and Saccopharyngiformes) of Taiwan is increased to 14 families, 79 genera and 232 species. Previous studies (Ho et al., 2015b, c) showed Taiwan had the highest diversity of eels in the world: this is further supported in the present updated work. Elsewhere in this volume, 16 species are newly described and 13 species are newly added to the Taiwanese ichthyofauna, mainly in the families Congridae and Synaphobranchidae. In addition, one new genus and four new species are described from adjacent waters in the Pacific Ocean. A total of 58 new species of the two eel orders are described from Taiwan; 52 of them are valid, and 37 are only found in Taiwan. Four names previously recorded in Taiwan are described as new in present special issue and are removed from the fauna of Taiwan accordingly. This work provides a foundation for the study of eel diversity in Taiwan.

A new pleurodiran turtle from the Jagua Formation (Oxfordian) of western Cuba

2001 ◽  
Vol 75 (4) ◽  
pp. 860-869 ◽  
Author(s):  
M. S. De La Fuente ◽  
M. Iturralde-Vinent
Keyword(s):  
Pacific Ocean ◽  
New Genus ◽  
Sister Group ◽  
Phylogenetic Hypothesis ◽  
New Genus And Species ◽  
Western Tethys ◽  
The Pacific ◽  
The Pacific Ocean ◽  
The Caribbean

The oldest Jurassic marine pleurodire is reported from the Jagua Formation in western Cuba. These remains are from levels of middle and late Oxfordian age. This turtle represents a new genus and species, Caribemys oxfordiensis. A phylogenetic hypothesis is proposed, whereby Caribemys is considered to be the sister group of Notoemys Cattoi and Freiberg, 1961, plus the Eupleurodira Gaffney and Meylan, 1988. The occurrence of Caribemys oxfordiensis n. gen. and sp. in the Jagua Formation along with plesiosauroids, pliosauroids, ophthalmosaurian ichthyosaurs, and metriorhynchid crocodiles, strongly suggests that during the Oxfordian a marine seaway was present in the Caribbean, connecting the western Tethys with the Pacific Ocean.

A new marine Dryosphaera (Ascomycotina) from the tropics

1993 ◽  
Vol 71 (7) ◽  
pp. 992-995
Author(s):  
Jan Kohlmeyer ◽  
Brigitte Volkmann-Kohlmeyer
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Type Species ◽  
Marine Fungi ◽  
Sandy Beaches ◽  
The Pacific ◽  
The Indian Ocean ◽  
The Pacific Ocean ◽  
The Caribbean ◽  
The Tropics

The marine ascomycete Dryosphaera tropicalis Kohlm. & Volkm.-Kohlm., sp.nov., is described from the Caribbean (Tobago), the Indian Ocean (Sri Lanka, Thailand), and the Pacific Ocean (Hawaiian Islands: Hawaii, Kauai, Maui, and Molokai). The new species occurs on intertidal and supratidal wood on sandy beaches. It is compared with the type species, Dryosphaera navigans from temperate waters, and differs mainly by ascospore dimensions and appendages. Key words: arenicolous fungi, ascomycetes, Dryosphaera, marine fungi, tropics.

Portaratrum, a new genus of deep-sea Tanaidacea (Crustacea) with description of two new species

Zootaxa ◽  
2003 ◽  
Vol 282 (1) ◽  
pp. 1 ◽  
Author(s):  
JÜRGEN GUERRERO-KOMMRITZ
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Atlantic Ocean ◽  
Deep Sea ◽  
New Genus ◽  
The Pacific ◽  
The Family ◽  
Two New Species ◽  
The Pacific Ocean

A new genus, Portaratrum n. gen. and two new species, one from the Atlantic Ocean and one from the Pacific Ocean are described. The new genus is characterized by a downwardly directed pleonal spur, cheliped basis fused to the cephalothorax, biramous uropods, pars molaris blunt with several terminal spinules. At present the genus is assigned to the family Colletteidae. Both species were collected from depths exceeding 4000 m.

New species of Duplominona Karling, 1966 (Platyhelminthes, Proseriata) from the Pacific coast of Panama

Zootaxa ◽  
2020 ◽  
Vol 4881 (3) ◽  
pp. 482-498
Author(s):  
MARCO CURINI-GALLETTI ◽  
MARCELLA CARCUPINO ◽  
GIACINTA A. STOCCHINO ◽  
FRANCESCA LEASI ◽  
JON L. NORENBURG
Keyword(s):  
New Species ◽  
Pacific Coast ◽  
Copulatory Organ ◽  
Present Contribution ◽  
Isthmus Of Panama ◽  
The Pacific ◽  
Species Pairs ◽  
The Caribbean ◽  
Hard Structures ◽  
Single Locality

Eight new species of Duplominona (Platyhelminthes, Proseriata, Monocelididae) are described from the Pacific coast of Panama. They differ from their congeners in the detailed morphology of hard structures associated with the copulatory organ. Duplominona basidilatata n. sp. has a cirrus provided with 5–6 rows of triangular spines, 3–8 μm long, with a large, flat, poorly sclerotized basis. D. hystricina n. sp. has 10–12 rows of needle-shaped spines, 3.5–15 μm long, with a swollen basis. The cirrus of D. hyperhystricina n. sp. is provided with 20–25 rows of slender spines 1.5–9 μm long, with a recurved distal tip. In D. veracruzensis n. sp., cirrus spines increase abruptly in size, from 1.5–2 μm to 6–7 μm. D. uniserta n. sp. has a very long seminal vesicle and a small cirrus, provided with one girdle of hook-shaped spines, 3–5 μm long. D. macrodon n. sp. has one girdle of large, triangular spines, 8–18 μm long. Both D. trimera n. sp. and D. pseudotrimera n. sp. have a tripartite tail, and their cirrus is provided with a stylet. In D. trimera n. sp., the stylet is surrounded by 15–20 rows of spines, 6.5–10 μm long, while D. pseudotrimera n. sp. has 6–8 rows of large spines, 7–22 μm long. D. uniserta n. sp. and D. aduncospina Curini-Galletti, 2019 from the Caribbean coast of Panama have few rows of morphologically nearly identical spines, and are possible candidates as trans-isthmian geminate species. The presence of species with a tripartite tail on both sides of the Isthmus of Panama suggests the possibility of further geminate species pairs; however, no support could be obtained on the basis of the morphology of their hard structures. Five of the eight new species of Duplominona have been found in a single locality, and the diversity of genus along the Pacific coast of Panama may be far higher than present contribution suggests.

scholarly journals Two new species of entobdelline skin parasites (Monogenea, Capsalidae) from the blotched fantail ray, Taeniura meyeni, in the Pacific Ocean, with comments on spermatophores and the male copulatory apparatus

2009 ◽  
Vol 54 (1) ◽  
Author(s):  
Ian Whittington ◽  
Graham Kearn
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Anatomical Study ◽  
Copulatory Organ ◽  
The Body ◽  
Evolutionary Divergence ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Male Copulatory Apparatus ◽  
The Individual

AbstractWe made a comparative anatomical study of entobdelline monogenean skin parasites from the blotched fantail ray, Taeniura meyeni (= T. melanospila) from public aquaria and fish-holding facilities distributed widely across the western Pacific Ocean. These facilities were located in Australia (Mooloolaba, southern Queensland; Cairns, northern Queensland), Taiwan and Japan. The capture localities of the aquarium fishes are unknown to us, with the exception of the individual fish from northern Queensland which came from Sudbury Reef, a local inshore reef. Entobdellines from southern Queensland differed morphologically from those from northern Queensland and Taiwan and the 2 new monogenean species are described and named Neoentobdella garneri sp. nov. and N. taiwanensis sp. nov., respectively. We determined that an entobdelline collected by Dyer and co-workers from a ray identified as T. melanospila (= T. meyeni) from an aquarium in Okinawa, Japan and identified by them as Entobdella squamula (Heath, 1902) Johnston, 1929 was misidentified and is tentatively assigned to N. taiwanensis sp. nov. The male copulatory organ of each new species resembles a penis, but evidence that these organs are eversible like a cirrus is presented. Caution is advised in deciding whether the male copulatory organs of capsalids may function as a penis or as a cirrus and we suggest that possession of a penis versus a cirrus may not necessarily indicate wide evolutionary divergence. In N. garneri, spermatophores consist of a sausage-shaped capsule and a long hollow stalk. A spermatophore received from a donor is anchored in the vagina by means of the stalk, with the capsule protruding outside the body.

Xenosellidae, a new family of Janiroidea (Asellota: Isopoda:  Crustacea), for Xenosella coxospinosa gen. nov., sp. nov.,  from the marine bathyal of eastern Australia

Zootaxa ◽  
2005 ◽  
Vol 1085 (1) ◽  
pp. 21 ◽  
Author(s):  
JEAN JUST
Keyword(s):  
New Species ◽  
Body Shape ◽  
New Genus ◽  
New Genus And Species ◽  
South Eastern ◽  
Incertae Sedis ◽  
New Family ◽  
Eastern Australia ◽  
Similar Body ◽  
South Eastern Australia

A new genus and species of janiroidean Asellota, Xenosella coxospinosa, is described from the mid-bathyal slope off the coast of south-eastern Australia. Following a comparison of the new species to several families of broadly similar body shape, with emphasis on monotypic Pleurocopidae, a new family, Xenosellidae, is proposed for the new species. In the course of comparing relevant taxa, the current placements of Prethura Kensley in the Santiidae and Salvatiella Müller in the Munnidae are rejected. The two genera are considered to be incertae sedis within the Asellota superfamily Janiroidea pending further studies.

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