A new genus and species of Sclerodactylidae (Echinodermata: Holothuroidea: Sclerothyoninae) from the Pacific coast of Panama, and assignment of Neopentamera anexigua to Sclerothyoninae

Zootaxa ◽  
2018 ◽  
Vol 4429 (1) ◽  
pp. 157
Author(s):  
LUCIANA MARTINS ◽  
MARCOS TAVARES
Keyword(s):  
Body Wall ◽  
New Genus ◽  
Pacific Coast ◽  
The Body ◽  
The Other ◽  
Monotypic Genus ◽  
New Genus And Species ◽  
The Pacific ◽  
Calcareous Ring

Paulayellus gustavi, a new sclerodactylid genus and species, is described from the Pacific coast of Panama. The new genus and species is assigned to the subfamily Sclerothyoninae based on a suite of characters, which include the radial and interradial plates of the calcareous ring united at the base only. Paulayellus gen. nov. differs from the other Sclerothyoninae genera in having posterior processesof radial plates undivided. Additionally, differs from Sclerothyone, Thandarum and Neopentamera in having knobbed buttons, plates and cups in the body wall (whereas the body wall is furnished only with tables and plates in Sclerothyone, Temparena and Thandarum, and only with knobbed buttons and plates in Neopentamera). The new genus is, so far, monotypic. The also monotypic genus Neopentamera proved to have the radial and the interradial plates of the calcareous ring united at the base only, as typically found in the Sclerothyoninae, and is therefore transferred to that subfamily. The discovery of a new genus in the Sclerothyoninae and the transfer of Neopentamera required the amendation of the diagnosis for the subfamily. A key to the Sclerothyoninae is given. 

A new genus and species of polyclad flatworm found in the mantle cavities of gastropod molluscs in the high-intertidal zone of the Pacific coast of Central America

2007 ◽  
Vol 87 (2) ◽  
pp. 429-434 ◽  
Author(s):  
Anno Faubel ◽  
Ronald Sluys ◽  
David G. Reid
Keyword(s):  
Central America ◽  
Intertidal Zone ◽  
New Genus ◽  
Pacific Coast ◽  
New Genus And Species ◽  
Diagnostic Characters ◽  
The Pacific ◽  
Upper Eulittoral ◽  
High Intertidal Zone ◽  
Commensal Relationship

A commensal relationship is described between the polyclad flatworm Paraprostatum echinolittorinae Faubel & Sluys gen. et sp. nov. and gastropod molluscs living on the Pacific coast of central America. Although the worms are relatively large in comparison with their hosts, the latter sustained no apparent damage. Considering the fact that the molluscs live in the upper eulittoral zone and littoral fringe of the shore, it is unlikely that the polyclads could survive for long outside the hosts. Diagnostic characters for the new genus and species are a long penial stylet joined to the proximal vesicle and absence of Lang's vesicle. It is pointed out that Aprostatum clippertoni Bock, 1913 and A. longipenis (Kato, 1943) have been incorrectly transferred to the genus Euplana Girard, 1893 and that Discoplana malagensis Doignon, Artois & Deheyn, 2003 should be transferred to the genus Ilyella Faubel, 1983.

Giving up on elaborate dermal ossicles: a new genus of ossicleless Apodida (Holothuroidea)

2017 ◽  
Vol 98 (7) ◽  
pp. 1685-1688 ◽  
Author(s):  
Camilla Souto ◽  
Luciana Martins ◽  
Carla Menegola
Keyword(s):  
New Species ◽  
Shallow Water ◽  
New Genus ◽  
The Body ◽  
The Other ◽  
Brazilian Coast ◽  
South Eastern ◽  
Phylogenetic Framework ◽  
A New Species ◽  
Calcareous Ring

In this paper we describe a new genus and a new species of Chiridotidae based on specimens collected in shallow water off the South-eastern Brazilian coast. Gymnopipina ikamiaba gen. nov. et sp. nov. is characterized by the complete absence of dermal ossicles in the body, and it differs from the other ossicleless apodids in the number of tentacles and of Polian vesicles, and in the morphology of the calcareous ring. Although not formally tested with a phylogenetic framework, apodids have apparently lost their dermal ossicles multiple times. If these reversions hold true, Gymnopipina gen. nov. represents the fourth independent loss of dermal ossicles in the class Holothuroidea. An identification key to the Brazilian apodid species is also provided.

scholarly journals A new genus and species of fish parasitic cymothoid (Crustacea, Isopoda) from the Indian Ocean coast of South Africa, with a key to the externally attaching genera of Cymothoidae

ZooKeys ◽  
2019 ◽  
Vol 889 ◽  
pp. 1-15 ◽  
Author(s):  
Niel L. Bruce ◽  
Rachel L. Welicky ◽  
Kerry A. Hadfield ◽  
Nico J. Smit
Keyword(s):  
South Africa ◽  
Indian Ocean ◽  
Dorsal View ◽  
Anterior Margin ◽  
New Genus ◽  
The Body ◽  
Monotypic Genus ◽  
New Genus And Species ◽  
North Eastern ◽  
The Indian Ocean

Bambalocra intwalagen. et sp. nov. is described from Sodwana Bay, north-eastern South Africa. The monotypic genus is characterised by the broadly truncate anterior margin of the head with a ventral rostrum, coxae 2–5 being ventral in position not forming part of the body outline and not or barely visible in dorsal view, and the posterolateral margins of pereonites 6 and 7 are posteriorly produced and broadly rounded. The antennulae bases are widely separated, with both antennula and antenna slender. The species is known only from the type locality and the known hosts are species of Pomacanthidae (Angelfish). A revised key to the externally attaching genera of Cymothoidae is provided.

A new genus and species of monostiliferous hoplonemertean (Enopla: Hoplonemertea: Monostilifera) from New Zealand

Zootaxa ◽  
2002 ◽  
Vol 50 (1) ◽  
pp. 1 ◽  
Author(s):  
RAY GIBSON ◽  
MALIN STRAND
Keyword(s):  
New Zealand ◽  
Body Wall ◽  
New Genus ◽  
Morphological Features ◽  
The Body ◽  
Full Length ◽  
New Taxon ◽  
New Genus And Species ◽  
The Brain

Vulcanonemertes rangitotoensis gen. et sp. nov. (Hoplonemertea: Monostilifera) is described and illustrated. Major morphological features of the new taxon include an anteriorly divided body wall longitudinal musculature, no pre-cerebral septum, cephalic glands which reach far back behind the brain, and accessory lateral nerves which extend the full length of the body.

A Note on the British Species of Cucumarians, Involving the Erection of Two New Nominal Genera

1970 ◽  
Vol 50 (3) ◽  
pp. 683-687 ◽  
Author(s):  
F. W. E. Rowe
Keyword(s):  
Type Species ◽  
Body Wall ◽  
Sensu Stricto ◽  
The Body ◽  
The Other ◽  
Posterior Region ◽  
The Press ◽  
The University ◽  
Species Being ◽  
Calcareous Ring

While preparing a report on Echinodermata from the Stilly Isles, based on collections made by the University of London Sub-Aqua Club but including also earlier records by various authors (F. W. E. Rowe, J. nat. Hist., in the Press), it became apparent that the species generally known as Cucumaria saxicola Brady & Robertson and C. normani Pace, from Mortensen's classic handbook (1927), have not been satisfactorily reassigned generically since the break-up of Cucumaria sensu extenso and need new generic names in conformity with current views on generic distinctions in the Dendrochirotida.Mortensen (1927), in his survey of the Echinoderms of the British Isles, includes seven species in the genus Cucumaria: C. frondosa (Gunnerus); C. elongata Düben & Koren; C. hyndmanni Thompson; C. saxicola Brady & Robertson; C. normani Pace;C. lactea (Forbes) and C. planci (Brandt), this last species being wrongly credited to von Marenzeller.C. frondosa is a plump to barrel-shaped animal with ten large, bushy tentacles, podia, at least in the older specimens, not restricted to the ambulacral areas, a calcareous ring with no posterior bifurcations on the radial plates or any fusion of the ventralmost radial and adjacent interradial plates and spicules of the body wall comprising thin, multilocular, smooth or slightly thorny plates, these being more or less restricted to the posterior region and to the podia in older animals. It has been designated type-species of the genus by Panning (1949), thus delimiting Cucumaria sensu stricto. The other species included by Mortensen cannot be treated as being congeneric with frondosa by virtue of their elongate body, ten relatively small tentacles of which the ventralmost two are smaller than the remaining eight, podia restricted to the ambulacral areas, calcareous ring showing a tendency, in some forms, to develop posterior bifurcations on the radial plates and fusion of the ventral-most radial and adjacent interradial plates and the differing form and combinations of spicules of the body wall.

Marine reptiles from the Nanaimo Group (Upper Cretaceous) of Vancouver Island

2002 ◽  
Vol 39 (11) ◽  
pp. 1591-1603 ◽  
Author(s):  
Elizabeth L Nicholls ◽  
Dirk Meckert
Keyword(s):  
British Columbia ◽  
Late Cretaceous ◽  
Upper Cretaceous ◽  
New Genus ◽  
Pacific Coast ◽  
Vancouver Island ◽  
The Other ◽  
Western Interior Seaway ◽  
Marine Reptiles ◽  
The Pacific

A new fauna of fossil marine reptiles is described from the Late Cretaceous Nanaimo Group of Vancouver Island. The fossils are from the Haslam and Pender formations (upper Santonian) near Courtenay, British Columbia, and include elasmosaurid plesiosaurs, turtles, and mosasaurs. This is only the second fauna of Late Cretaceous marine reptiles known from the Pacific Coast, the other being from the Moreno Formation of California (Maastrichtian). The new Nanaimo Group fossils are some 15 million years older than those from the Moreno Formation. However, like the California fauna, there are no polycotylid plesiosaurs, and one of the mosasaurs is a new genus. This reinforces the provinciality of the Pacific faunas and their isolation from contemporaneous faunas in the Western Interior Seaway.

scholarly journals Gebrukothuria profundus, a new genus and species of laetmogonid holothurian (Elasipodida, Laetmogonidae) from around the Crozet Plateau in the Southern Indian Ocea

Zootaxa ◽  
2009 ◽  
Vol 2096 (1) ◽  
pp. 479-483
Author(s):  
ANTONINA ROGACHEVA ◽  
IAN A. CROSS ◽  
DAVID S. M. BILLETT
Keyword(s):  
Indian Ocean ◽  
Body Wall ◽  
New Genus ◽  
Morphological Characters ◽  
The Body ◽  
Southern Indian Ocean ◽  
New Genus And Species ◽  
The Family ◽  
Calcareous Deposits ◽  
Tube Feet

A new genus and species of laetmogonid holothurian (Elasipodida, Laetmogonidae), collected from around the Crozet Plateau in the Southern Indian Ocean, is described. It differs from other members of the family in that the body wall lacks the wheel-shaped calcareous deposits completely. Instead only rods are present. The genus is also distinguished by the combination of other morphological characters lacking in other known genera: absence of circum-oral and ventrolateral papillae together with development of midventral tube feet. All other members of the family Laetmogonidae are known to have wheel-shaped deposits, therefore diagnosis of the family is refined.

Acespadia pomposa n.g. et sp. A Parasitic Copepod of Rhyncodon typicus

Parasitology ◽  
1933 ◽  
Vol 25 (4) ◽  
pp. 480-482 ◽  
Author(s):  
W. Harold Leigh-Sharpe
Keyword(s):  
New Genus ◽  
Parasitic Copepod ◽  
The Other ◽  
New Genus And Species ◽  
South West ◽  
The Pacific ◽  
The Family

Habitat and material. By the courtesy and at the request of Prof. Vladimir Ebathof of Archangel I have been enabled to examine and describe two female copepods belonging to a new genus and species of the family Lernaeopodidae, consigned to him as taken from the gills of Rhyncodon typicus Smith caught in 1913 in the Pacific between China and south-west Japan. One specimen, drawn to scale (Fig. 1), was twice the size of the other.

Pentamera fonsecae n. sp. a new species of sea cucumber from the Pacific coast of Costa Rica (Holothuroidea: Dendrochirotida: Thyonidae)

Zootaxa ◽  
2020 ◽  
Vol 4878 (3) ◽  
pp. 581-588
Author(s):  
FRANCISCO ALONSO SOLIS-MARIN ◽  
JUAN JOSE ALVARADO ◽  
CARLOS ANDRES CONEJEROS-VARGAS ◽  
ANDREA ALEJANDRA CABALLERO-OCHOA
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Sea Cucumber ◽  
Body Wall ◽  
Pacific Coast ◽  
The Body ◽  
The Pacific ◽  
A New Species ◽  
Tube Feet

Pentamera fonsecae n. sp. is described from seven specimens as a new species of Thyonidae from the Pacific coast of Costa Rica. It is distinguished from its congeners by having tables with ladder-shaped spires in the body wall, and tube feet with curved support tables of variable height and tables as those found in the body wall slightly smaller than those from the body wall. This species is distributed in Guanacaste, Costa Rica, from 28.5 to 40 m on muddy bottoms.

scholarly journals Ypsilothuria bitentaculata bitentaculata (Echinodermata: Holothuroidea) from the southwestern Atlantic, with comments on its morphology

2018 ◽  
Vol 35 ◽  
pp. 1-6
Author(s):  
Luciana Martins ◽  
Marcos Tavares
Keyword(s):  
Body Wall ◽  
The Body ◽  
Southeastern Brazil ◽  
Southwestern Atlantic ◽  
The Pacific ◽  
Southwestern Atlantic Ocean ◽  
Microscope Images ◽  
The Pacific Ocean ◽  
First Time ◽  
Calcareous Ring

Ypsilothuria bitentaculata bitentaculata(Ludwig, 1893), previously known from several localities in the Pacific Ocean, is recorded herein for the first time from the southwestern Atlantic Ocean based on eight specimens caught off the coast of southeastern Brazil, between 505–511 m deep. Several morphological details are added to the description ofY. b. bitentaculata, including photographs of specimens and calcareous ring plates, as well as scanning electron microscope images of the ossicles from the body wall, oral and anal siphons and introvert. Additionally,Y. b. bitentaculatais compared to its congeners.

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