Entalina platamodes (Watson, 1879)

Caetano, Carlos Henrique Soares, Scarabino, Victor & Absalão, Ricardo Silva, 2006, Scaphopoda (Mollusca) from the Brazilian continental shelf and upper slope (13 º to 21 ºS) with descriptions of two new species of the genus Cadulus Philippi, 1844, Zootaxa 1267, pp. 1-47 : 30

publication ID

http://doi.org/ 10.5281/zenodo.173183

publication LSID

lsid:zoobank.org:pub:DD06702D-A18D-4323-9CAE-D8F315FCCCC7

DOI

http://doi.org/10.5281/zenodo.6258433

persistent identifier

http://treatment.plazi.org/id/CC6E8784-FFE7-FFA6-FF54-FE30FBE5D4B1

treatment provided by

Plazi

scientific name

Entalina platamodes (Watson, 1879)
status

 

Entalina platamodes (Watson, 1879)  

Figs. 60–61 View FIGURES 57 – 73

+ Siphonodentalium platamodes Watson 1879: 519   ; 1886: 13, pl. 2, fig. 4.

+ Entalina platamodes: Pilsbry and Sharp 1897: 133   , pl. 23, figs. 3–5; Henderson 1920: 87, pl. 15, figs. 1, 4, 5, 7; Emerson 1952: 7, pl. 1, fig. 1; Turner 1955: 314; Warmke and Abbott 1961: 222; Abbott 1974: 390, fig. 4585; Penna­Neme 1974: 114; Scarabino 1985: 200, pl. 73, fig. 1027; 1994: 308, pl. 107, fig. 1514; Steiner and Kabat 2001: 443; 2004: 630; Gracia et al. 2005: 332, fig. 5.

+ Entalina quadrata Henderson 1920: 88   , pl. 15, figs. 2, 3, 6, 10.

Type material

Syntypes BMNH 1887.2.9.61– 62, 3 dd.

Type locality

West Indies: Culebra Island, Challenger sta 24, 18 º 38 ’ 30 "N, 65 º05’ 30 "W, 712 m (by original designation).

Diagnosis

shell medium size (to 10 mm), markedly curved, fresh specimens translucent. Five primary ribs, secondary ribs more notorious at angles of intercostals spaces. Section pentagonal at apex, tetragonal at aperture, pre­apical callus thin.

Material examined

IBUFRJ 10032, sta A 3, 4 dd; IBUFRJ 10714, sta C 36 r, 7 dd; IBUFRJ 10934, sta C 38 f, 1 dd; IBUFRJ 13784, sta 2 f, 1 dd; IBUFRJ 13785, sta 5 r, 4 dd; IBUFRJ 13787, sta 20, 1 dd; IBUFRJ 13788, sta 1 f, 3 dd; IBUFRJ 13789, sta 517, 5 dd; IBUFRJ 13790, sta C 13, 18 dd; IBUFRJ 13791, sta 25 A, 31 dd; IBUFRJ 13792, sta 504, 11 dd; IBUFRJ 13793, sta 52, 455 dd; IBUFRJ 13810, sta R 4 # 1, 8 dd; IBUFRJ 13811, sta R 3 # 2, 11 dd; MORG 40089, sta C 36 r, 1 dd.

Distribution

USA: Florida (Henderson 1920; Abbott 1974); Caribbean Sea: Cuba (Turner 1955); Colombia (Gracia et al. 2005); Porto Rico (Emerson 1952); Culebra Island (Watson 1879); Brazil: off Alagoas (Penna­Neme 1974; Scarabino 1985, 1994), Bahia to Rio de Janeiro (this study). Living 290 m (Penna­Neme 1974), shells 20 to 830 m (this study).

Remarks

Henderson (1920) based his description of E. quadrata   on a single specimen, which shows a tetragonal section throughout and many longitudinal riblets at intercostals spaces. Emerson (1952) studied five lots, totaling over 200 specimens of E. platamodes   , and verified a variation in the degree of expression of dorsal ribs which produces shells with pentagonal and/or tetragonal sections. Our material seems to have less longitudinal riblets than the "numerous" mentioned by Emerson (1952: 8).

Kingdom

Animalia

Phylum

Mollusca

Class

Scaphopoda

Order

Gadilida

Family

Entalinidae

Genus

Entalina

Loc

Entalina platamodes (Watson, 1879)

Caetano, Carlos Henrique Soares, Scarabino, Victor & Absalão, Ricardo Silva 2006
2006
Loc

Entalina quadrata

Henderson 1920: 88
1920
Loc

Entalina platamodes:

Pilsbry and Sharp 1897: 133
1897
Loc

Siphonodentalium platamodes

Watson 1879: 519
1879