88 



VARICELLA, JAMAICA. 



17 (April, 1822). DELESSERT Recueil -de Coq. decrites par 

 Lamarck, pi. 28, f. 6a,Z>. PFR., Monogr. ii, p. 293. 



This fine species is still known only by the original descrip- 

 tion and De'lessert's figures. These indicate a shell closely 

 related to V. texta, but differing by its larger size and less 

 curved columella. There are occasional straight white 

 varices, probably four on the last whorl, each preceded by 

 a zigzag blackish stripe inclosed in a pale streak; the re- 

 mainder of the intervariceal spaces being reddish. Deles- 

 serfs figures measure, length 63, diam. 20, length of aper- 

 ture 25 mm. 



Ferussac gave the locality I'Amerique, with doubt. From 

 the resemblance of the species to V. texta, I think it will be 

 found in southwestern Haiti. 



Section VARICELLINA Pilsbry, n. sect. 



Varicellas with abruptly truncate 'columella, the surface 

 sculptured with strongly sinuous rounded riblets wider than 

 the intervening grooves; varices indistinctly marked with an 

 impressed line and a whitish streak. First iy 2 whorls 

 smooth, the next whorl marked with rather widely spaced 

 grooves. Type V. curvildbris. 



There are two species: V. curvilabris, stouter and larger, 

 length 14 to 17 mm., with 7y 2 to 8 whorls, and V. vicina, 

 more slender, 12 to 14 mm. long, with 6y 2 to 7 whorls. Both 

 are Jamaican. 



35. V. CURVILABRIS (Pfeiffer). PI. 9, figs. 37, 38, 39, 40. 



The largest examples have a somewhat cylindric last whorl 

 and conic spire. It is widest near the top of the last whorl. 

 The sculpture is of very regular, low rounded and markedly 

 sinuous riblets, separated by narrow grooves. On the face 

 of the last whorl there are five riblets in one mm. There are 

 some inconspicuous varix-lines, the largest shell before me 

 having 4 on the last whorl. The apex is rather acute and 

 elevated, first iy 2 whorls smooth. The next whorl has nar- 

 row -grooves with wide flat intervals; the following whorl is 

 short, compared to those above and below it, and sculp- 



