94 BULLETIN OF THE 



suture, rounded and vermicular ; next whorls with spiral sculpture, whcroof 

 three riblets about e(|uidi.staut are markedly larger and more prominent tliaii 

 the rest ; sculpUue ol' mature whorls consisting of tine spiral threads with 

 nearly equal interspaces crossed by tine lines of growth and divided into five 

 bands by four larger jjolished spirals, which are white and marked by rather 

 distant dots of brown ; of these bands of fine spirals that behind the anterior 

 suture and the two immediately behind it are of about equal width and ecjuul 

 to the two posterior bands and their included large spiral taken together ; the 

 general surface, barring the large spirals, is marked by light nebulous transverse 

 pencillings of brown, which in general accord in direction with the lines of 

 growth ; the whorls are hardly at all rounded latei\ally, are slightly carinated 

 by the three major spirals, and the last whorl is flattened on the base, but 

 without any marked carina at the periphery of the base ; spiral sculj^ture of 

 the base similar to that of the spaces between the major spirals on the side of 

 the whorls, with here and there a slightly larger thread ; the transverse sculp- 

 ture consists of the lines of growth above mentioned, which are most distinct 

 on and between the minor spirals and irregular narrow undulations following 

 the lines of growth (about twenty-five to the last whorl), which cross the lar- 

 ger whorls in some specimens so prominently as to render the major spirals 

 almost tuberculate at their intersection, in most specimens produce a series of 

 modefate undulations, and in others are almost obsolete ; outer lip thin, sharp, 

 very little rounded, and hardly emarginated by the slight flexuosity of the 

 lines of growth ; pillar rather thin, prettily arched, passing into the flattened 

 basal edge ; body polished, not callous ; suture rather indistinct, not chan- 

 nelled ; base in several specimens dotted with convex, ovate, coriaceous, light 

 yellow ovicapsules, whose surface, wrinkled in drying, seemed to have origi- 

 nally been smooth, and to have had a length of 0.75 and a breadth of 0.5 mm. 

 Lon. of shell, 16.5 ; of last whorl, 5.5 ; of aperture, 3.25. Max. lat. of base, 

 5.0 ; of aperture, 2.75 mm. 



Yucatan Strait, 640 fms. 



This species perhaps most resembles a miniature edition of T. leucosfoma 

 Valenciennes, but does not agree with any of Watson's species or with the few 

 species ordinarily assigned to the West Indian province. Quite a number of 

 fresh specimens were obtained, which are very uniform in size, disposing of the 

 suspicion that the shell might be drifted from shallow water. 



Actseon fasciatus Lamarck. 



A species which may be the Tornatella fasciata of Lamarck, judging by fig- 

 ures only, was obtained from Station 19, 310 fms. ; by Sigsbee, Station 50 

 (Lat. 26° 31' and Lon. 85° 53' W.), in 119 fms. ; Station 9, 111 fms. (young) ; 

 and from 450 fms. off Havana, also a young specimen. 



