THE NAUTILUS. 29 



REMARKS ON UROSALPINX PERRUGATUS CONRAD. 



BY FRANK C. BAKER, PHILADELPHIA, PA. 



This mollusk was described by Conrad in the American Journal 

 of Science, Xew Series, voL 11, 1846, p. 397, as follows : " Fusus per- 

 rugatus Conrad. Manatee Kiver. Fusiform, with remote longitu- 

 dinal ribs, and large prominent revolving lines alternating with a 

 fine line ; whorls longitudinally rugose, upper half flat and oblique ; 

 aperture rather more than half the length of the shell, purple with- 

 in ; labrum striate ; color of the exterior cinereous. Proportionally 

 wider than F. cinereus, with fewer and larger ribs and lines." 



The only references I have been able 

 to find, Avhich have been made to this shell 

 , ^ ^^rS^ since the foregoing description, are those 



by Dr. W. H. Dall in Bulletin No. 37 of 

 tlie United States National Museum, p. 

 120, and in the Report on the Blake Gas- 

 teropoda, p. 214, in which he says : " There 

 are three American species known to be- 

 long to it ; ( Urosalpinx) :— U. cinereus Say, 

 ranging from Massachusetts to Florida ; 

 U. tampaensis Conrad, known only from 



■*■ the west coast of Florida lastly 



U. perrugatus Conrad." 



Among the specimens of cinereus in 

 the collection of the Academy of Natural 

 Sciences of Philadelphia [ found several trays of perrugatus, and 

 as no really good description, and no figure has been published of 

 this species, I take this opportunity of redescribingand figuring the 

 same. 

 Urosalpinx perrugatus Conrad. 



Shell fusiform, solid, cinerous, under the lens showing a scabrous 

 texture ; whorls six, subcarinated, longitudinally plicate, the folds 

 eight in number on the last wdiorl, large, rounded ; there are eigh- 

 teen strong, spiral Vivve, with fine intervening threads ; aperture 

 ovate, rather moi'e than half the length ofthe entire shell ; outer lip 

 rounded, edge scalloped by the spiral lir?e ; inner lip arcuate, 

 smooth ; canal longish, open, reflexed ; umbilicus none, but there is 



