CUBAIS^ SUBFAMILY CHONDROPOMI]S^AE TORRE AND BARTSCII 27 1 



constricted with but the merest suggestion of obsolete denticulations 

 at the summit of the whorls. Periphery inflated, strongly rounded. 

 Base rather short, inflated, and rounded and marked like the spire. 

 Aperture broadly ovate ; peristome double, the inner slightly exserted 

 and reflected ; the outer broadly flaringly expanded, fluted, and marked 

 by concentric threads, cut in the middle of the inner lip almost to 

 the inner peristome, the posterior half being reflected over the umbili- 

 cus and parietal wall as a strong callus ; parietal wall also covered 

 with an extensive callus. Operculum paucispiral with excentric 

 nucleus, having the last whorl covered with a heavy granular cal- 

 careous deposit. 



Of the animal we have the following notes : 



Of G. shubttleworthi shuttleworthi the sides of body, sole of foot, 

 and tip of snout are pale smoky gray, the upper portion being darker. 

 Base of tentacles surrounded by a white ring, the rest crimson; the 

 lateral edges of the expanded tip are smoky. Sole of foot medially 

 cleft; locomotion of the two sides alternate. 



The animal of C. shuttleworthi portica is smoky gray with a buff 

 tinge, the edge and sole of the foot pale buff, which is also the color 

 of the tip of the snout. Tentacles with a flesh-colored ring about 

 the base, the rest crimson except for the slightly expanded distal 

 portion, which is smoky on the sides. The internal pink anatomy 

 shines slightly through the integument behind the tentacles. Foot 

 medially cleft; locomotion of the two sides alternate. 



The animal of C. shuttleworthi atriola is smoke gray, being a little 

 darker on top than on the sides. There is a white ring about the 

 tentacles at their base, the rest being bright red, except for the slightly 

 expanded distal portion, which has a yellow tinge, the tip of the 

 snout being slightly paler. The sole of the foot is longitudinally 

 cleft, pale smoke-gray. 



The animal of C. shuttleworthi cUvicola is pale smoke-gray. 

 Tentacles almost sooty with a subterminal paler band. Snout a little 

 paler than the general coloration of the body; edge of the body at 

 the junction of the foot flesh-color. Sole of the foot flesh-color, with 

 a faint smoky suffusion. The internal anatomy shines through the 

 body wall behind the tentacles with a rosy flush. The short foot is 

 medially deeply cleft, progression being alternate by the two sides. 



Distribution of the subspecies of C. shuttleworthi is shown in 

 figure 89. 



