26 EPIDROMUS. 



"Allied to T. maculosus, but thinner and cancellated." The 

 above is the original description, and the species has not been 

 figured nor recognized. Very probably it is founded on a thin 

 specimen of T. maculosus. 



T. SOWERBYI, Reeve. PI. 14, fig. 122. 



Shell encircled by brown, excavated lines, in pairs. Orange- 

 brown, variegated with brown and ornamented with two distant 

 rows of square brown spots. Length, 2*5 to 3 inches. 



Galapagos Isles, in sandy mud at six fathoms (Cuming) ; Red Sea, 

 (Mac Andrew, Tapparone-Canefri) ; Me of France (Chemnitz). 



Said to live in the Red Sea at a less depth than T. maculosus ; 

 from 10 to 11 metres. 



T. CLATHRATUS, Sowb. PI. 14, figs. 123, 124, 129. 



Whorls well-rounded, rapidly increasing, so as to form a stout, 

 heavy shell, with small mouth and broad lip-varix. Covered with 

 strong, sharp-set longitudinal ribs which are fimbriated by the 

 crossing of revolving lines. Yellowish white, mottled with 



orange-brown. Length, 1'5 inches. 



Indian Ocean. 



The coarse, prominent sculpture, rounded whorls, and stout 

 form distinguish this species. T. Gumingii, Dohrn (fig. 129), is 

 described from an unusually stout specimen. 



T. DISTORTUS, Schubert & Wagner. PI. 14, figs. 125, 126. 



Light yellowish brown, clouded with chestnut, with frequently, 

 a median row of chestnut spots. Length, 1'25 to 2'5 inches. 



Indo-Pacific Ocean. Polynesia. 



This species is readily distinguished by its curved spire, which 

 is caused by the single varices of each whorl occurring in a con- 

 tinuous oblique line. The animal is pale flesh-color with a fawn- 

 colored head, and tentacles annulated with fawn-color. 7. 

 tortuosus, Reeve (fig. 126), cannot be considered even a variety. 



T. OBSCURUS, Reeve. PL 14, figs. 127, 128 ; PL 16, fig. 151. 



Light brown, clouded with chestnut, with one or two revolving 

 series of chestnut spots. Length, 1*5 to 2*25 inches. 



Indian Ocean ; Paumotus, West Indies, Cape Verd Is. 



