No. 2369. NEW MOLLUSKS FROM CUBA— TORRE AND HENDERSON. 249 



vertical, circularly oval; peristome white, double; the inner, a brief 

 continuation of the whorl; the outer, on the right side, smooth, 

 slightly expanded, at the suture broadly expanded and excavated 

 over the breathing tube, adnate to the penultimate whorl; columellar 

 margin expanded horizontally above in a broad flange adnate to the 

 penultimate whorl, a large lobe curving over and nearly covering the 

 umbilical region, interrupted below by a broad sinus where the lip 

 is abruptly reflexed and attached to the whorl, a smaller lobe ex- 

 panded horizontally below. A minute breathing pore within the 

 aperture near the posterior angle connects with a tube, somewhat 

 concealed in the expanded and excavated lip, which, curving back 

 to the suture, descends and ends in the narrow space between the 

 ultimate and penultimate whorls. Numerous strong raised lamellae 

 mostly originating on the inner lip, but occasionally extending along 

 the parietal lip, cover that portion of the tube visible within the lip. 

 Operculum as in Opisthosiplion pupoides Morelet. 



Type. — In the collection of the Museum of Comparative Zoology, 

 Cat. No. 42005. It was collected by Dr. S. S. Berry at Cairije, Cerro 

 de Tuabaquey, Province Camaguey, Cuba, and measures: Length, 

 13.5 mm.; greater diameter, 9 mm.; lesser diameter, 7.3 mm.; alti- 

 tude of aperture, 4.7 mm.; width of aperture, 4 mm. A paratype 

 from the same locality is in Doctor Berry's collection. It measures: 

 Length, 14.5 mm.; greater diameter, 9.7 mm.; lesser diameter, 7.5 

 mm.; altitude of aperture, 5.5 mm.; width of aperture, 4.3 mm. 



OPISTHOSIPHON (OPISTHOSIPHONA) BERRYI BERRYI Clapp. 



Plate 38, figs. 1-4. 



This, the typical subspecies, is characterized by the greater ex- 

 pansion of the peristome which completely conceals the umbilicus. 

 It appears to be confined to the locality given for Mr. Clapp's type. 



OPISTHOSIPHON (OPISTHOSIPHONA) BERRYI SEMIAPERTUM, new subspecies. 



Plate 38, figs. 5-8. 



The rather solid shell is ovate conic with open umbilicus partially 

 concealed by the inner expansion of the peristome; decollated, leaving 

 three and a half to four convex whorls. The color is ochraceous buff 

 to very light yellow or straw — (a) unicolor, (b) with a single narrow 

 or broad band of chestnut, (c) with several revolving rows of small 

 rufous spots. The suture is deeply impressed and more or less ir- 

 regularly crenulate by the thickening of the axial lirae into hollow 

 white bulbs, becoming larger and more prominent on the summit 

 of the last whorl, especially near the aperture. The sculpture con- 

 sists of axial lirae, more widely spaced upon the earlier whorls, but 

 quite densely disposed upon the last whorl. Within the umbilical 

 region are five or six low cords crossed by the axial threads. The 



