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
Author
Caetano, Carlos Henrique Soares
Author
Scarabino, Victor
Author
Absalão, Ricardo Silva
text
Zootaxa
2006
1267
1
47
journal article
10.5281/zenodo.173183
e66afec9-257b-473d-978b-1940bac0537b
11755326
173183
Dentalium laqueatum
Verrill, 1885
Figs. 1–5
+
Dentalium laqueatum
Verrill 1885
: 431
, pl. 44, fig. 18;
Dall 1889
: 426
, pl. 27, fig. 1;
Maury 1922
: 34
;
Abbott 1974
: 383
, fig. 4491;
Scarabino 1994
: 306
, pl. 105, fig. 1496;
Cabral and Mello 1994
: 34
, fig. 2;
Steiner and Kabat 2001
: 442
; 2004: 608;
Gracia
et al
. 2005
: 330
, fig. 3. +
Dentalium (Dentalium) laqueatum
:
Henderson 1920
: 23
;
PennaNeme 1974
: 106
;
Scarabino 1985
: 197
, pl. 71, fig. 1008.
+
Dentalium (Dentalium) laqueatum laqueatum
:
Henderson 1920
: 24
, pl. 1, figs. 6, 7. +
Dentalium (Dentalium) laqueatum regulare
Henderson 1920
: 26
, pl. 1, fig. 8.
Type
material
Holotype
USNM
44671.
Type
locality
Off Cape Hatteras, North Carolina,
USA
,
124 m
(by original designation).
Diagnosis
Shell up to
60 mm
long, cream, slightly curved, entire surface reticulated by longitudinal, transversal striae. Nine to twelve rounded primary ribs, secondary ones begin early, all reach oral aperture, giving polygonal section. Intercostal spaces concave. Apex polygonal, short notch at convex side.
FIGURES 1–19.
Genus
Dentalium
and
Paradentalium
. (1–5)
Dentalium laqueatum
, (1) IBUFRJ 14233, 40 mm, (2–5) IBUFRJ 14238, 27 mm; (6–10)
Paradentalium gouldii
, (6) Paralectotype MCZ 7707, (7–10) IBUFRJ 10796, 10 mm; (11–15)
Paradentalium disparile
, (11–13) IBUFRJ 7744, 36 mm, (14–15) other specimen from the same lot exibiting the apical pipe, 29 mm; (16–19)
Paradentalium infractum
, IBUFRJ 14240, 45 mm. Scale bar = 100 m.
Material examined
Holotype
of
D. laqueatum
; IBUFRJ 8064, sta D14, 4 lv; IBUFRJ 8082, sta VV38, 3 dd; IBUFRJ 14233, sta Y5, 2 dd; IBUFRJ 14234, sta R2#1, 2 lv, 37dd; IBUFRJ 14235, sta R1#1, 1 dd; IBUFRJ 14236, sta 27, 2 dd; IBUFRJ 14237, sta 25, 1 dd; IBUFRJ 14238, sta C27, 2 lv, 13 dd; IBUFRJ 14239, sta C35, 1 dd.
Distribution
USA
: North Carolina, Florida; Caribbean Sea: Gulf of
Mexico
, North of
Cuba
;
Jamaica
;
Antigua
,
Barbados
and
Grenada
; north of Yucatan; Campeche bank (
Henderson 1920
;
Abbott 1974
);
Colombia
(
Gracia
et al
. 2005
);
Brazil
: Amapá to Santa Catarina (
PennaNeme 1974
;
Scarabino 1985
,
1994
). Living 82 (this study) to
225 m
(
Sander & Lalli 1982
), shells
77 to 550 m
(this study).
Remarks
Verrill (1885: 432)
indicated: "st. 2268 off Chesapeake Bay, in 68 fathoms", but the label of the
type
material reads "off Cape Hatteras USBF, in 68 fms", the locality cited by
Steiner and Kabat (2004)
.