82 Bulletin 29 346 



nineteen and the last whori twenty of these nodules; an ill-defined 

 third row of still smaller nodules borders the convex portion of the 

 body whorl. The entire shell is sculptured with numerous rather 

 irregular, interrupted, very granulose threads and ridges, more 

 or less alternating with weaker spirals; aperture medium; outer 

 lip strongly lirate within, the lirse being linear not granulose; 

 inner lip with a callus thickest anteriorly; columella with one 

 very strong anterior plication, a weaker median, and a sugges- 

 tion of a third faint, posterior plication; canal rather long, nearly 

 straight. Length 93, width 40 mm. 



Locality. — (Exp'd '16) — Bluff 1, Cercado de Mao. (A 

 single shell.) 



Genus Latirus Montfort 

 Lati7 r ns infundibulum Gmelin 



Plate 13, Figure 3 N 



Latirus infundibulum Gmelin, Lamarck, Anim. sans Vert. (ed. 



Desh. ) vol. 9, p. 386: Reeve Conch. Icon., Turbinella, No. 3. 

 Latirus infundibulum Guppy, Quart. Jour. Geol. Soc. London, vol. 



22, p. 288, 1866; Geol. Mag. London, p. 438, 1874. 

 Latirus infundibulum Gabb, Trans. Amer. Phil. Soc, vol. 15, p. 



217, 1873. 

 Turbinellus {Latirus) infundibidum Guppy, Quart. Jour. Geol. Soc. 



London, vol. 32, p. 523, 1876. 

 Latirus infundibulum Dall. Bull. 37, \J. S. Nat. Mus., p. 112, 1889; 

 Trans. Wagner Inst. Sci. vol. 3, pt. 6, p. 1584, 1903. 



A recent shell has but ten primary spirals on the convex 

 part of the body whorl while the fossil has sixteen ; the ribs are 

 equal in number. The fossil measures 55X18. The recent 

 57 X 19 mm. 



A larger series might show that the ancestral form should 

 have a distinctive name, varietal or specific. If so, gurabensis 

 would be appropriate. 



This species occurs at Bowden, and in the Caroni Series, 

 Trinidad. The recent form is living in rather deep water from 

 the Tortugas to Santa Lucia. 



Localities. — (Exp'd '16) — Zones A, B, E, Rio Gurabo at 

 Los Quemados. 



