R. Houart & J. Colomb 
A new species of S ira tus from Guadeloupe 
Protoconch light or dark brown. Aperture bluish- 
white, pariétal tooth white, edge of outer lip with dark 
brown spots between apertural crenulations. 
Spire moderately high with 1.75 protoconch whorls 
and 6-6.5 broadly convex, weakly shouldered, nodose 
whorls. Suture weakly adpressed. Protoconch small, 
whorls rounded with a weak, narrow, single keel 
abapically (Fig. 4). Maximum width 700-900 pm, 
height 700 pm. First whorl small, 300-350 pm width. 
Terminal lip shallow, délicate, opistocyrt. 
Axial sculpture of teleoconch whorls consisting of 
high, narrow, rounded ribs and high, strong, narrow, 
rounded, weakly spinose varices. First whorl with 11- 
13 ribs, second whorl with 5-9 ribs, starting varices, 
third whorl with 3 low varices and 2 intervarical ribs 
of similar height, fourth to last whorl with 3 high, 
narrow, rounded varices and 3 narrow, high 
intervarical ribs. Spiral sculpture of high, strong, 
naiTow, nodose, primary, secondary and tertiary cords. 
First whorl with P1-P3, second and third with IP, Pl- 
P3, fourth with adis, IP, abis, PI and P2, P3 
occasionally covered by subséquent whorl, fifth whorl 
with adis, IP, abis, PI, si, P2, last teleoconch whorl 
with t, adis, IP, abis, PI, si, P2, s2, P3, s3, P4, s4, P5, 
s 5 , P6, s6, ADP, ads, MP. Intersection of axial ribs 
and varices with spiral cords torming bioad, high, 
strong nodes. Spiral cords PI and MP giving rise to 
small, acute spine. 
Aperture narrow, ovate. Columellar lip narrow, with 
narrow, elongate folds adapically and abapically with 
3-5, elongate, strong, oblique knobs, increasing in 
strength abapically. Rim partially erect, adhèrent at 
adapical extremity. Strong pariétal tooth at adapical 
extremity. Anal notch deep, narrow. Outer lip erect, 
weakly crenulated, with weak or strong, low, narrow 
denticles within: ID, D1-D6. ID, D1-D4 split at inner 
edge of outer apertural lip (Fig. 2). Adapical and 
abapical denticles higher and stronger, D3 and D4 
low. Siphonal canal long, 49-50% of total shell height, 
narrow, straight, strongly dorsally bent, narrowly 
open. 
Operculum brown, ovate, with subapical nucléus and 
9 or 10 broad, concentric ridges. Attached surface 
with about 6 or 7 growth lines and broad callused rim. 
Etymology. The new species is named for Michèle 
Colomb, the wife of the second author. 
Figs 1-2. Siratus michelae n. sp. spiral cords and apertural denticles morphology (paratype RH coll.). 
Remarks. Siratus michelae n. sp. can be compared 
with two species only, that also occur off Martinique, 
although at depth of about 150-200 m. 
Siratus cailleti (Petit, 1856) (Figs 5-6, 13-16) differs 
in having a larger shell with a larger and broader 
protoconch (Figs 5-6), with a width of 1000 pm and a 
height of 800-900 pm,.lacking the fine abapical keel, 
in having only two, broader and higher intervarical 
îibs on penultimate and last teleoconch whorls, and in 
having a relatively broader siphonal canal. 
Siratus kugleri (Clench & Pérez Farfante, 1945) (Figs 
17-22) most ol the time also has a shell with three 
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intervarical ribs on four or three abapical teleoconch 
whorls, but the protoconch is larger and also lacks the 
abapical keel, the shell is relatively larger with a much 
broader last teleoconch whorl, a broader aperture and 
a relatively broader siphonal canal. 
Merle et al (2011, pl. 24, fig. 12) illustrated a shell in 
MNHN as a syntype of M similis Sowerby, 1841. 
Murex similis is an earlier name for S. kugleri but a 
junior homonym of M similis Schrôter, 1805, thus 
invalid. Siratus kugleri was named as a replacement 
name for M. similis Sowerby. The specimen from 
MNHN was brought to the muséum by Sowerby in 
