VERMETUS. 187 



Y. SPIRATUS, Phil. PL 55, figs. 99, 100. 



Shell chestnut-colored, varying to light yellowish ash, more or 

 less longitudinally striated and carinated. 



Atlantic Coast of the United States, West Indies, 



Gulf of Mexico. 



Var. MELANOSCLERA, Morch. Shell solid, chestnut-colored, with 

 dark transverse striae, obtusely quadrangular, exteriorly 

 angulated in the middle, the angle lighter colored, longitu- 

 dinally lirulate, interior sides strongly lirate. 



Vera Cruz. 



Var. QUADRANGULARIS, Morch (= quadrangulus, Phil.). Reddish 

 brown. 



Yucatan. 



Var. BICARINATUS, Morch. This is the ordinary West Indian and 

 Florida type as figured above. Dall. describes a V. lumbri- 

 calis, var. nigricans, growing in large patches, almost form- 

 ing reefs on the West Coast of Florida. He can scarcely 

 refer to this form ; more probably it is V. varians, d'Orb. 

 This is V. lumbricalis, d'Orb., V. Knorri, Desh. 



Yar. RADICULA, Stimpson (fig. 100). Yellowish ash-color, with 

 several unequal strong ridges, sometimes spotted with chest- 

 nut, and intermediate fine lirulae. United States, Mass, to 

 Fla. 

 This is V. lumbricalis of Gould, and var. cinerea of Morch. 



Yars. UNGULTNA, SCALARIS and TERES are also given by Morch. 



Y. DIMORPHUS, Morch. PL 56, fig. 2. 



Solid, spirally twisted, variegated ash-color and cinnamon; 

 whorls loose, laterally connate and affixed, longitudinally closely 

 striulate, with three unequal remote exterior line, upper side 

 with a plane surface destitute of sculpture. 



Ph ilippines. 



Morch adds a var. LITUINA. 



Y. PELLUCIDUS, Brod. and Sowb. PL 56, figs. 3-6, 9, 10. 



Pellucid, longitudinally striate, carinate towards the apex. 



West Coast of Central and South America. 



