128 CERITHIUM. 



whorl ; white, mottled with chestnut and ornamented by punctured 

 lines, the large tubercles black tipped. Length, 1 in. 

 Wrt Indies (Morch, Sowb., etc.) ; West Coast of N. Amer. (Car- 

 penter, Adams, etc.). 



This species I have not seen, but from the figure it appears to be 

 very close to, perhaps a spinose variety of the West Indian C. 

 eburneum, Brug. Morch included it in his West Indian catalogue 

 and refers it to the MS. name C. Antillaram, D linker. On the 

 other hand, Carpenter includes it among his Mazatlan shells and 

 considers C. famelicum, Ad., an unfigured species from Panama, a 

 synonym ; he has described a var. mediolceve. 



C. LITTERATUM, Born. PI. 22, figs. 63, 64. 



Shell with close granular, spiral stride, narrowly shouldered by a 

 row of tubercles ; white, the interstices of the granules chestnut or 

 chocolate spotted. Length, 1-1'5 in. 



West Indies, Florida. 



It is C. angustum, Anton. 



C. MUSICUM, Sowb. PL 22, fig. 65. 



Rudely plicate, forming a concave shoulder on each whorl ; white, 

 with music-like chocolate lines and spots. Length, 1 in. 



Habitat unknown. 



C. SEMIFERRUGINEUM, Lam. PL 22, figs. 66, 67. 



Spirally, granosely striated, with a pair of stronger tuberculated 

 riblets in the middle of the body whorl, and a still stronger sub- 

 sutural row, extending to the spire whorls ; yellowish white, irregu- 

 larly maculated and spotted with orange, chestnut or chocolate 

 color. Length, 1-1 '5 in. 



West Indies. 



C. pictum, Wood (fig. 67), is a synonym. 



C. ATRATUM, Born. PL 22, figs. 68-70. 



Shell with a sutural row of small nodules, succeeded by a row of 

 larger ones, and below it, on the body whorl, about four rows of 

 slight granules, between each row several close incised spiral lines, 

 body whorl with a varix opposite the aperture ; greyish, more or less 

 clouded with chocolate, often almost entirely covered by varying 

 shades of the latter; when the shell is dark the aperture becomes 

 violaceous-blue. Length, 1-1*5 in. 



II 'rat Indies, Florida. 



