COCHLITOMA. 



( A. vestita !PR., P. Z. Soc. 1854. p. 293; Xovit. Conch, 

 p. 35, pi. 9, f. 8, 9; Monogr. iv, H(:5; Malak. Bl. ii. p. 168.- 

 SMITH, Ann. and Mag. N. H. 1S!H>. vi, p. 391. STURANY, 

 Catalog, p. 58 [594]. MARTENS, Archiv f. Naturg. Ixiii, 1897, 

 p. 36; Sitzungsber. Ges. nat. Freunde, 1890, p. 87 (notes 

 on sculpture) ; Conch. Mittheil. iii, p. 2 (1894). 



In the general shape and character of markings, as well 

 as in the sculpture of the spire, C. vestita has much in com- 

 mon with C. semidecussata. The first whorl is nearly smooth; 

 several following whorls are decussate-granulate ; but the last 

 two whorls are finely and sharply costulate-striate, the 

 icostulse bearing recurved cuticular scale-like processes 

 (fig. 49). The columella is compressed and sinuous, with a 

 sort of " siphonal funicle ' near the base. A somewhat 

 similar structure may be seen in C. granulata. Length 68, 

 diam. 31, aperture 35 mm. 



5. C. DELORIOLI (Bonnet). PI. 28, fig. 41. 



Shell thin, transparent, obtuse, marked with oblique striae, 

 very strong on the last whorl, finer towards the summit of the 

 spire M r here they are decussated by spirals, which are also in- 

 conspicuous. Last two or three whorls are covered with a 

 deep fulvous cuticle, paler towards the apex as well as to- 

 wards the umbilical region. Spire composed of 7 convex 

 whorls, the suture noticeably sinuous, the last whorl semi- 

 globose, marked with large and long irregular streaks of a 

 dark brown color, and not reaching to the ends of the 

 >]!. Sometimes these streaks are quite oblique and dis- 

 anpe.-ir t.o-.v.'irds the summit of the spire. Aperture oval, the 

 .: ime very. ihin. violaceous \vhite inside, but yellowish 

 by trans' -wing the external spots. Columella 



whilish. Length 72, diam. 32 mm. Habitat, Brazil (Bonnet). 

 Aclxitina'de Lorioii BONNET, Revue et Magazin de Zoologie 

 '(1 ser) xvi. 1864, p. 279, pi. 22, figs. 1, 1 a. ("Achatina 

 'lorioii " at foot of plate). A. l.ridi IVi;., Monogr. vi. p. 218. 

 Seems to be exactly similar to C. vestita except in the small 

 apex shown in Bonnet's figure. This may perhaps be an 

 'error on the part of the draughtsman. Figure and descrip- 

 tion from Bonnet. 



