WoRMS taxon details

Trituba lima Gofas, 2003

180939  (urn:lsid:marinespecies.org:taxname:180939)

accepted
Species
marine
Gofas, S. (2003). An endemic radiation of <i>Trituba</i> (Mollusca, Gastropoda) on the North Atlantic seamounts. <em>American Malacological Bulletin.</em> 17(1-2): 45-63.
page(s): 57-58 [details]  Available for editors  PDF available [request] 
Note Irving seamount (32°15.9'N - 27°31.8'W, 670...  
From editor or global species database
Type locality Irving seamount (32°15.9'N - 27°31.8'W, 670 m) [details]
Type locality Cruiser seamount, 32°15.9'N - 27°31.8'W, 670 m. [details]
Distribution Irving and Cruiser seamounts, uncommon in 670-1035 m; endmic.  
Distribution Irving and Cruiser seamounts, uncommon in 670-1035 m; endmic. [details]
MolluscaBase eds. (2020). MolluscaBase. Trituba lima Gofas, 2003. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=180939 on 2020-03-29
Date
action
by
2005-09-06 14:57:36Z
created

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original description Gofas, S. (2003). An endemic radiation of <i>Trituba</i> (Mollusca, Gastropoda) on the North Atlantic seamounts. <em>American Malacological Bulletin.</em> 17(1-2): 45-63.
page(s): 57-58 [details]  Available for editors  PDF available [request] 

context source (Deepsea) Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS), available online at http://www.iobis.org/ [details]   

basis of record Check List of European Marine Mollusca (CLEMAM). , available online at http://www.somali.asso.fr/clemam/index.clemam.html [details]   
 
 Present  Inaccurate  Introduced: alien  Containing type locality 
From editor or global species database
Biology The type of larval development is not known from direct evidence, but is inferred to be intracapsular from similarity of the larval whorls with those of Cerithiella (see Bouchet and Warén, 1993). There is a multispiral protoconch, but no clear separation protoconch 1/protoconch 2 nor protoconch 2/teleoconch.  [details]

Diagnosis Shell up to 16 x 3.2 mm, fusiform, solid, white, with 19-22 whorls. Protoconch ca. 4-4.5 whorls, with the nucleus quite protruding and a somewhat pupoid profile; protoconch whorls quite convex, the second and third with the suprasutural portion slightly overhanging the following whorl; sculptured with weak ribs, almost axial on the first whorl, more oblique on the following whorls.
Teleoconch whorls sculptured with strong subsutural and suprasutural knobs, arranged so as to form two spiral rows and loosely defined, oblique axial ribs; the suprasutural knobs starting earlier on the first teleoconch whorl and bordered adapically by a definite spiral line, nearly as conspicuous as the suture. Body whorl quite narrowing, its abapical surface smooth and circled by a faint keel.
Aperture with a continuous, hardly flaring peristome. Siphonal canal very short, narrowing towards outer opening, inside with columellar and labial lamellae coming very close together. Anal canal small and short, pointing sidewards.

This species somewhat resembles T. constricta Gofas, 2003 but differs in that the protoconch has one more whorl and the nodes on the teleoconch are well separated, without forming ribs; the protoconch is broken on most adult specimens.
 [details]

Distribution Irving and Cruiser seamounts, uncommon in 670-1035 m; endmic. [details]

Type locality Irving seamount (32°15.9'N - 27°31.8'W, 670 m) [details]

Type locality Cruiser seamount, 32°15.9'N - 27°31.8'W, 670 m. [details]

From other sources
Habitat Known from seamounts and knolls [details]