Thandarum hernandezi, a new genus and new species of sea cucumber family Sclerodactylidae (Echinodermata: Holothuroidea: Dendrochirotida) from the Southwestern Atlantic Ocean

Zootaxa ◽  
2012 ◽  
Vol 3304 (1) ◽  
pp. 63 ◽  
Author(s):  
MARIANO I. MARTINEZ ◽  
MARTÍN I. BROGGER
Keyword(s):  
New Species ◽  
Sea Cucumber ◽  
Body Wall ◽  
New Genus ◽  
The Body ◽  
Southwestern Atlantic ◽  
Double Row ◽  
Southwestern Atlantic Ocean ◽  
A New Species ◽  
Tube Feet

A new genus and a new species of dendrochirotid, Thandarum hernandezi gen. et sp. nov., is described from Buenos Airescoast in the Southwestern Atlantic. For this species is quite significant the body U shape, up to 14.08 mm (along thetrivium), with double row of podia restricted to the ambulacra. Other features are ossicles from body wall with buttonsand 4 pillar tables, tube feet with rods and end plate star-shaped; the introvert with rosettes and tentacles with rods. Thesecharacteristics require the recognition of a new genus, and the new species and represents the first sclerodactylid reported in Argentinean waters.

Holothuria (Selenkothuria) carere, a new species of sea cucumber (Echinodermata: Holothuroidea) from the Mexican Pacific

Zootaxa ◽  
2011 ◽  
Vol 2922 (1) ◽  
Author(s):  
MAGALI HONEY-ESCANDÓN ◽  
FRANCISCO A. SOLÍS-MARÍN ◽  
ALFREDO LAGUARDA-FIGUERAS
Keyword(s):  
New Species ◽  
Sea Cucumber ◽  
Body Wall ◽  
The Body ◽  
Mexican Pacific ◽  
Anal Papillae ◽  
A New Species ◽  
Tube Feet

A new species of sea cucumber of the subgenus Selenkothuria Deichmann, 1958 is described. Holothuria (Selenkothuria) carere n. sp. was found in the Mexican Pacific, from intertidal to 6 m depth. The absences of ossicles in the body wall, as well as in the dorsal and ventral tube feet make this species unique among the species of this subgenus. Smooth straight rods with distal perforations and projections are present only in the dorsal and anal papillae, papillae at the base of the tentacles and in the tentacles. This species is distinctive within the subgenus. The shape of the ossicles shows some similarities with H. (S.) glaberrima Selenka, 1867.

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.

Two new species of Sclerothyone from the southwestern Atlantic Ocean, with a key to genera and species of Sclerothyoninae (Holothuroidea: Dendrochirotida: Sclerodactylidae)

Zootaxa ◽  
2019 ◽  
Vol 4658 (2) ◽  
pp. 375-382
Author(s):  
LUCIANA MARTINS ◽  
MARCOS TAVARES
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
South African ◽  
Body Wall ◽  
Circular Disc ◽  
Southwestern Atlantic ◽  
African Species ◽  
Southwestern Atlantic Ocean ◽  
Two New Species ◽  
Tube Feet

Sclerothyone Thandar, 1989, currently restricted to two South African species, is here expanded to include two new species from off coast of Brazil. These new species expand the distribution of the genus to the southwestern Atlantic Ocean. Sclerothyone reichi sp. nov. is characterized by having body wall with multilocular two pillared tables with multiperforate disc and short spire, ending in a narrow crown of teeth; tentacles with rods and introvert with two pillared tables and rosettes; tube feet with only end plates. Sclerothyone oloughlini sp. nov. is distinctive in having a body wall with multilocular, two pillared tables; handles present and multilocular two-pillared tables; circular disc without handle; and plates (near the anus). The new species resemble each other in the tentacles with rods. However, Sclerothyone oloughlini sp. nov. stands apart from S. reichi sp. nov. in the introvert with rosettes; tube feet with two pillared supporting tables, arched plates and end plates. The possible assignment of Cucumaria nozawai Mitsukuri, 1912 and Thyone adinopoda Pawson & Miller, 1981 to Sclerothyone, and the position of Thyone neofusus Deichmann, 1941 in Temparena Thandar, 1989, are briefly discussed. A key to all genera and species of Sclerodactylinae is provided.

scholarly journals Phyllophorus (Phyllophorus) maculatus, a new species of sea cucumber from the Yellow Sea (Echinodermata: Holothuroidea: Dendrochirotida)

Zootaxa ◽  
2007 ◽  
Vol 1608 (1) ◽  
pp. 31-34
Author(s):  
YULIN LIAO ◽  
DAVID L. PAWSON ◽  
WEI LIU
Keyword(s):  
New Species ◽  
Yellow Sea ◽  
Sea Cucumber ◽  
Body Wall ◽  
The Body ◽  
The Yellow Sea ◽  
Anal Region ◽  
A New Species

Phyllophorus (Phyllophorus) maculatus new species is described from a depth of 22–45 meters near the western edge of the Yellow Sea. The body is cylindrical, with body wall ossicles present only in the anal region. Ossicles are four-pillared tables with low spires and indented disc margin. A revised key to the eleven phyllophorine (Family Phyllophoridae, Subfamily Phyllophorinae) species now known from China is presented.

VI.—Note on Ephippioceras clitellarium, J. de C. Sowerby, sp., and E. costatum, A. H. Foord

1900 ◽  
Vol 7 (12) ◽  
pp. 560-561
Author(s):  
G. C. Crick
Keyword(s):  
New Species ◽  
New Genus ◽  
British Museum ◽  
Acute Angle ◽  
The Body ◽  
Museum Collection ◽  
Body Chamber ◽  
Coal Measures ◽  
A New Species

The name Nautilus clitellarius was given by J. de C. Sowerby to a Nautiloid from the Coal-measures, Coalbrookdale, Shropshire, and the description was accompanied by three figures, each representing a different specimen. In 1884 the species was included by Professor Hyatt in his new genus Ephippioceras. In 1891 Dr. A. H. Foord found a new species, Ephippioceras costatum, which was said to be “distinguished from E. clitellarium (to which it is, however, very closely related) by the character of the septa and by the surface ornaments. The septa in E. costatum do not form such an acute lobe upon the periphery as do those of E. clitellarium, and they are also a little wider apart in the former species than they are in the latter. Moreover, E. costatum is provided with prominent transverse costæ, which are strongest upon the sides of the shell where they swell out into heavy folds. These costæ are directed obliquely backwards, and cross the septa at an acute angle, passing across the periphery and forming a shallow sinus in the middle. None of the specimens in the British Museum have the test preserved, so that the ribbing has only been observed upon casts. The costæ are equally well developed upon the body-chamber and upon the septate part of the shell in the adult, but they were either very feeble or altogether absent in the young.” A re-examination of the specimens in the Museum collection shows that the separation of the two forms is quite justifiable.

scholarly journals Expansion of the genus Massinium (Holothuroidea: Thyonidae) to the American continent and description of a new species

2021 ◽  
Vol 69 (Suppl.1) ◽  
pp. 304-311
Author(s):  
Francisco-A. Solís-Marín ◽  
Alfredo Laguarda-Figueras ◽  
Carlos-A. Conejeros-Vargas ◽  
Andrea-A. Caballero-Ochoa ◽  
Alicia Durán-González
Keyword(s):  
New Species ◽  
New Record ◽  
Body Wall ◽  
Scuba Diving ◽  
Morphological Characters ◽  
Geographic Range ◽  
The Body ◽  
American Continent ◽  
Mexican Pacific ◽  
A New Species

Introduction: The genus Massinium includes 11 species, most from the Indo Pacific Ocean, and had not previously being reported from the American continent. Objective: To present the new record of the genus Massinium and describe a new species of this genus. Methods: Material collection was done by SCUBA-diving to depths of a maximum of 9 m. Results: Massinium ocumichoensis sp. nov. is described from seven specimens that extends the range of the genus to the American continent (Guerrero, Michoacan and Jalisco, Mexico). The new species lives in sandy-rocky substrata, from 2 to 16 m deep. It is distinguished from its congeneric species by a combination of morphological characters: mid-dorsal slightly bigger pseudobuttons (40-60 μm), and tables in the body wall. A taxonomic key for distinguishing the species of Massinium is provided. Conclusions: The geographic range of the genus Massinium is extended to the Mexican Pacific with M. ocumichoensis sp. nov.

scholarly journals Meplitumen aluna gen. nov., sp. nov. an interesting eutardigrade (Hypsibiidae, Itaquasconinae) from the Sierra Nevada de Santa Marta, Colombia

ZooKeys ◽  
2019 ◽  
Vol 865 ◽  
pp. 1-20
Author(s):  
Oscar Lisi ◽  
Anisbeth Daza ◽  
Rosana Londoño ◽  
Sigmer Quiroga ◽  
Giovanni Pilato
Keyword(s):  
New Species ◽  
Sierra Nevada ◽  
New Genus ◽  
The Body ◽  
Unique Combination ◽  
Insertion Point ◽  
Pharyngeal Bulb ◽  
Caudal Extremity ◽  
A New Species

A new genus of Itaquasconinae, Meplitumengen. nov., and a new species, Meplitumenalunasp. nov., are described. The new genus has characters present in other genera of Itaquasconinae but in a unique combination. The spiral thickening of the bucco-pharyngeal tube is also present anteriorly to the insertion point of the stylet supports, excluding only the short portion where the apophyses for the insertion of the stylet muscles (AISM) are present. This character is similar to Astatumen Pilato, 1997 but Meplitumengen. nov. differs from this genus as stylet furcae are shaped differently and as stylet supports and placoids are present. The presence of a spiral thickening in a portion of the buccal tube anterior to the stylet supports distinguishes the new genus from Mesocrista Pilato, 1987, Platicrista Pilato, 1987 and Itaquascon de Barros, 1939. Meplitumengen. nov. also differs from Mesocrista, in having the caudal processes of the AISM pointing laterally (instead of postero-laterally), and the apices of the caudal processes of the stylet furcae unswollen. From Itaquascon the new genus also differs by having more robust stylet supports, pharyngeal bulb with placoids, stylet furcae differently shaped. Meplitumengen. nov. also differs from Platicrista in having caudal processes of the AISM more robust and not flexible, and more slender stylet supports. The new species, Meplitumenalunasp. nov., has a cuticle with a very faint roughness at the caudal extremity of the body, and eyes probably absent. The pharyngeal bulb is long, with two long, narrow, rod-shaped macroplacoids; a microplacoid and septulum are absent. The claws are well developed with main branches provided with accessory points, and at the base of the claws, a structure interpretable as a very thin lunule is present. Other cuticular thickenings on the legs are absent.

The new genus Acrocephalomyia, and a new species of Ropalomera from Costa Rica, with additional records for other Mesoamerican species (Diptera: Ropalomeridae)

Zootaxa ◽  
2012 ◽  
Vol 3478 (1) ◽  
pp. 553-569 ◽  
Author(s):  
SERGIO IBÁÑEZ-BERNAL ◽  
VICENTE HERNÁNDEZ-ORTIZ
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Central America ◽  
New Taxa ◽  
New Genus ◽  
The Body ◽  
New Genus And Species ◽  
The Family ◽  
Forward Projection ◽  
A New Species

New taxa of the family Ropalomeridae from Costa Rica are described, and additional records of ropalomerid flies fromMexico and Central America are provided. The new genus and species Acrocephalomyia zumbadoi can be easily distin-guished from all other ropalomerid genera by the following combination of characters: angular forward projection of head,absence of ocelli, flat face, bare arista, long scutum, and scutellum triangular-shaped and dorsally flattened with only onepair of apical bristles with bases approximated. The new species Ropalomera aterrima can be recognized from congenersby remarkable differences of the head, the shape of the scutellum, the absence of scutal vittae, fumose wings, and by theblack coloration of the body, ocellar bristles large, one postpronotal bristle, scutum without pollinose vittae and flat scutellum. Lenkokroeberia chryserea Prado and Kroeberia fuliginosa Lindner are newly confirmed for Costa Rica.

A new species of whiptail stingray of the genus Dasyatis Rafinesque, 1810 from the Southwestern Atlantic Ocean (Chondrichthyes: Myliobatiformes: Dasyatidae)

Zootaxa ◽  
2004 ◽  
Vol 492 (1) ◽  
pp. 1 ◽  
Author(s):  
HUGO R.S. SANTOS ◽  
ULISSES L. GOMES ◽  
PATRÍCIA CHARVET-ALMEIDA
Keyword(s):  
New Species ◽  
Posterior Margin ◽  
Southwestern Atlantic ◽  
Pectoral Fins ◽  
Disc Width ◽  
Random Arrangement ◽  
Southwestern Atlantic Ocean ◽  
The World ◽  
Shoulder Region ◽  
A New Species

The new species is compared both with other Dasyatis species of the southwestern Atlantic and with similarly shaped species of Dasyatis from other areas of the world. The holotype was collected in Maraj Bay; near Colares Island, district of Colares, Bel m, Par State, Brazil. It differs from known Dasyatis species by the combination of the following characters: a diamond-shaped (rhomboid) disc; an elongate snout (preorbital distance ranges from 35.7 to 37.7 % in disc width); a dark, well defined band or dark blotches outlining the lower lips; a row of small tubercles along midline of disc from shoulder region to base of tail, presenting a widespread and random arrangement; posterior margins of pectoral fins uniformly rounded; triangular-shaped pelvic fins with posterior margin almost straight or slightly sinuous and tips exceeding the limits of the posterior margin of disc; dorsal caudal keel absent in the holotype, but vestigial in both paratypes.

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