CHLOROSTOMA. 193 



oblique irregular squamose lines ; aj)erture rounded-rhombic colu- 

 mella marked with a granule outside. (Phil.) 



This species is very distinct in sculpture. The 6 wliorls are 

 slightly convex, and have about 9 impressed spiral lines, which are 

 so intersected by irregular impressed longitudinal lines, that the 

 result is an irregular network, very difficult to render in the illustra- 

 tion. The aj)erture has nothing distinctive; the inner lip is smooth 

 inside. The columellar margin has a nacreous depression below, and 

 over it a white, blunt outward-projecting tooth. The umbilicus is 

 narrow, almost cylindrical, and is bounded by a rather acute angle ; 

 within this angle is a slight ridge, which ends in the denticle of the 

 columella. The color is a dirty flesh-tint; aperture and umbilical 

 region not colored ; the former has an inferior kind of nacre. 



Alt. 12, diam. 15i mill. (Philippi.) 



Brazil. 



T. corrugatus Koch in Philippi, Abbild., i, Trochn.-^, t. 2, f. 7 ; and 

 Phil. Conchyl. Cab., p. 157, t. 25, f. 9. 



Uufigured Chlorostoma and Omphalius. 



C. CASTANEUM A. Adams. C. testa oblique conica, umbilicata, 

 castanea; anfractibus planis, longitudinaliter obsolete nodoso-pli- 

 catis et oblique striatis, penultimo infra marginato, ultimo acut- 

 angulo, basi concavo, pallide fusca, lineis viridi-fuscis radiatim picta ; 

 umbilico infundibuliformi. perspectivo, intus albo, linea elevata 

 cincto ; apertura subrhomboidea ; columella supra sinuata, basi 

 dente terminata. (A. Ad.) 



Habitat unknown. 



P. Z. S., 1851, p. 182. 



C. TURBINATUM A. Adams. C testa turbinata, profuude umbili- 

 cata, nigi'a, spira obtusa, longitudinaliter subplicata, transversim 

 sulcosa ; anfractu ultimo rotundato, regione umbilicali partim callo 

 lutescente obtecta ; columella antice bituberculata ; labro nigro 



marginato. {A. Ad.) 



Habitat tm known. 



L. c, p. 182. — Smith, Ann. and Mng, N. H., 1875, p. 112. 



Mr. E. A. Smith has indentified this species with specimens re- 

 ceived by him from Toba, S. Niphon, Ja[)an. With it he unites 

 the Chlorostoma rugatmn of Gould, observing that the hittei- diflers 

 only in being more finely lirated on the base. . 

 13 



