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.

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.

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 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 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.

A new species of Chiridota (Echinodermata: Holothuroidea: Apodida: Chiridotidae) from Japan, and First record of C. rigida from Japan

Zootaxa ◽  
2017 ◽  
Vol 4341 (2) ◽  
pp. 243
Author(s):  
YUSUKE YAMANA ◽  
HAYATO TANAKA
Keyword(s):  
Intertidal Zone ◽  
Sea Cucumber ◽  
Body Wall ◽  
Longitudinal Muscle ◽  
First Record ◽  
The Body ◽  
New To Japan ◽  
Spinous Processes ◽  
Curved Rod ◽  
A New Species

A new apodid sea cucumber, Chiridota impatiens sp. nov., is described from the intertidal zone of Okinawa, Japan, and C. rigida Semper, 1867 is also described from the intertidal zone of Wakayama, as new to Japan. C. impatiens sp. nov. is approximately 60–70 mm, with 12 tentacles and 4–7 pairs of digits per tentacle, red or reddish brown in living specimens. The tentacles contain curved rod ossicles, with spinous processes and many branches in C. rigida, however, in C. impatiens sp. nov., the curved rod ossicles are crescent-shaped, sometimes distally, with spinous processes and rarely a few branches on the circumference. In both species, the body wall contains flattened rod ossicles, mostly present along the longitudinal muscle and mesentery, curved rod ossicles primarily in the body wall, and wheel ossicles only in the wheel-papillae. In C. rigida, the contents of the wheel-papillae form a hemispherical sack-shaped structures, in which the teeth-side of the wheel ossicles mostly faces towards the outside of the body. In C. impatiens sp. nov., the contents of the wheel-papillae form a cord-shaped structure (present in both preserved and living specimens), in which the teeth-side of the wheel ossicles faces various directions, and that can be induced to break through the skin of the papillae if stimulated in living specimens. 

scholarly journals Heteromolpadia joyceae, a new species of sea cucumber from New Zealand, with a key to New Zealand Molpadiidae (Echinodermata: Holothuroidea: Molpadiida)

Zootaxa ◽  
2007 ◽  
Vol 1608 (1) ◽  
pp. 35-39
Author(s):  
DAVID L. PAWSON ◽  
DORIS J. VANCE
Keyword(s):  
New Species ◽  
New Zealand ◽  
Sea Cucumber ◽  
Body Wall ◽  
East Coast ◽  
Average Length ◽  
A New Species

Heteromolpadia joyceae, new species, has been collected from depths of 258–632m off the east coast of New Zealand. It is distinctive in having a tough, leathery skin, gray with scattered red spots. Tables in body wall 100µm in diameter with three larger perforations; tail ossicles with 15–20 perforations, a three-pillared spire, and an average length of 300µm. A key to the eight species of Family Molpadiidae now known from the New Zealand region is provided.

Lissothuria imbricata sp. nov., a new species of sea cucumber (Echinodermata: Holothuroidea) from the central-eastern Pacific Ocean

Zootaxa ◽  
2018 ◽  
Vol 4438 (2) ◽  
pp. 373 ◽  
Author(s):  
FRANCISCO ALONSO SOLÍS-MARÍN ◽  
JULIO ADRIAN ARRIAGA-OCHOA ◽  
CRISTIAN MOISES GALVAN VILLA ◽  
ALFREDO LAGUARDA-FIGUERAS
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Sea Cucumber ◽  
Body Wall ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean ◽  
Rocky Reefs ◽  
Dorsal Area ◽  
Central Eastern ◽  
A New Species

A new species of sea cucumbers of the genus Lissothuria Verrill, 1867 is described. Lissothuria imbricata sp. nov. was found in the central-eastern Pacific Ocean, at 2–16 m depth living on top of rocky reefs, partially covered by algae and organic material. It is distinguished from other species of the genus by having body wall ossicles in form of short, broad towers with a slightly spiny apex, giving the dorsal area a granular appearance. The shape of the ossicles shows some similarities with L. nutriens (H.L. Clark, 1901). 

Memoirs: On a New Hermaphrodite Syllid

1930 ◽  
Vol s2-73 (292) ◽  
pp. 651-666
Author(s):  
E. S. GOODRICH
Keyword(s):  
New Species ◽  
Body Wall ◽  
Reproductive Organs ◽  
The Body ◽  
Advanced Stage ◽  
Sperm Duct ◽  
Cuticular Membrane ◽  
Constant Structure ◽  
Successive Generations ◽  
A New Species

In this paper a new species of Syllid, named Pionosyllis neapolitana, is described, whose chief characteristics are that it is hermaphrodite, and has reproductive organs of remarkably complex and constant structure.1 There are a pair of testes in each of the segments 10, 11, and 12, and a pair of ovaries in every segment from the thirteenth backwards throughout the region of the true intestine. A pair of nephridia with small nephridiostomes occurs in every segment from the fifth backwards, except in segments 11, 12, and 13, in which they become transformed into nephromixia functioning as sperm-ducts. Each sperm-duct is provided with a ciliated coelomostome opening into a male segment, and its postseptal tubule is enlarged into a sperm-sac where the spermatozoa form spermatophores. Presumably copulation takes place, since spermatophores are found lodged in paired spermathecae opening to the exterior on every female segment. One ovum at a time in every ovary enlarges and is extruded dorsally, apparently by breaking through the body-wall. The ova by this time are fertilized. They develop to an advanced stage surrounded by a cuticular membrane, and attached in pairs to every female segment. The young escape from the membrane when about eighteen segments have been formed. When the ova pass to the exterior they become attached to the laterodorsal surface of the female segments by means of fixing threads formed by special paired organs of fixation. These organs are derived from the spermathecae. Possibly successive generations of ova are extruded, but this has not yet been observed, nor is it known whether the fixing organs can again function as spermathecae. Exactly how and when fertilization takes place has not so far been determined.

Benthodytes marianensis, a new species of abyssal elasipodid sea cucumbers (Elasipodida: Psychropotidae) from the Mariana Trench area

Zootaxa ◽  
2018 ◽  
Vol 4462 (3) ◽  
pp. 443 ◽  
Author(s):  
YA-NAN LI ◽  
NING XIAO ◽  
LV-PING ZHANG ◽  
HAIBIN ZHANG
Keyword(s):  
New Species ◽  
Body Wall ◽  
Phylogenetic Analyses ◽  
The Body ◽  
Morphological Identification ◽  
Mariana Trench ◽  
Dark Violet ◽  
Trench Area ◽  
A New Species ◽  
Unusual Type

Benthodytes marianensis sp. nov., is described from the Mariana Trench at the depth of 5567 m. This is the thirteenth species in Benthodytes Théel, 1882. The new species has a broad brim around the body, dark violet skin, 9 pairs of large dorsal papillae with other papillae of equal or smaller size situated elsewhere, forming two zigzag rows, and some minute papillae scattered around the anterior region. Body wall ossicles are rods, crosses with three or four arms and central apophyses, and crosses of an unusual type. Crosses with four arms and central bipartite, tripartite and tetrapartite apophyses and peculiar cross-shaped ossicles with high apophyses ending in two horizontal arms are present in the dorsum. Large rod-shaped ossicles with bipartite apophyses and crosses with three or four arms and rudimentary apophyses are present on the ventrum. B. marianensis is morphologically most similar to B. incerta, but it is distinguished from B. incerta by the number and arrangement of dorsal large papillae, the broad brim and details of ossicle morphology. The phylogenetic analyses based on (16S, COI) and nuclear genes (H3) all confirm the morphological identification. 

Culex (Culex) longitubus, A New Species of the Mimeticus Subgroup (Diptera: Culicidae) From Bhutan

2021 ◽  
Author(s):  
Pradya Somboon ◽  
Thanari Phanitchakun ◽  
Jassada Saingamsook ◽  
Rinzin Namgay ◽  
Ralph E Harbach
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Male Genitalia ◽  
Immature Stages ◽  
High Altitudes ◽  
Coi Sequences ◽  
Anal Papillae ◽  
A New Species

Abstract Culex longitubus Somboon, Namgay & Harbach is described as a new species of the Mimeticus Subgroup of the subgenus Culex. The larva is most similar to the larva of Cx. tianpingensis Chen from China, but is distinguished by the length of the siphon and the anal papillae, the form of the comb scales and pecten spines, and the development of setae 7-P, 13-T, 1-X, and 4-X. The adults have wing markings and male genitalia similar to those of species of the Mimeticus Complex. Phylogenetic analysis of COI sequences revealed that the new species is closely related to Cx. murrelli Lien of the Mimulus Complex. The immature stages of the new species were found in stagnant pools and marshes at high altitudes in several districts of Bhutan.

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