(95) Galveston Welt- Fossils 13 



proximating pi. i, fig. 6. On page 70 of the same work the latter 

 is styled ^-^^//rar/fl; Sa}^ while in Bull. Mus. Comp. Zool., vol. 12, 

 p. 314 it is called kjoeriana Ad. Finally, these Texan well speci- 

 mens do not differ widely from nasuta Con. , from the Claiborne 

 sands ; the}^ all belong to the same section of the genus. 



Conrad's nasuta must give place to Lea's alabamiensis . It may 

 also be observed here that Hinds' name acneaia, 1843, must be 

 replaced by another for Say described a C. citneata in 1824. 



Range in deptli.— From 300? to 2,920 feet. 



PHOLAS. 



Pholas cos lata. 



Syn. P. costata Linn., Syst. Nat., loth ed., 1758, p. 669. 



A careful description and fine figure of this species will be found 

 on pp. 36 and 37 of Gould's report on the Invertebrata of ^Massa- 

 chmetts, 2nd ed., 1870. See also Bull. U. S. Nat. Mus., No. 37, 

 pi. 68, fig. 9. 



Range in depth. — From 2,410 to 2,476 feet. 



SCAPHOPODA. 



dentalium: 



Den taliu ni tetragon ii m . 



Syn. D. tetragoniDnShj., Thes. Conchyl., i860, p. 103. 

 D. tetragonum var. Har., 4th Ann. &c., p. 121. 



Range in depth.- From 2,158 to 2,920 feet. 



Dentalitcm quadrangularef 



Syn, D. quadrangularef Har., 4th Ann. Rep., p. 121. 



This species is figured in Thes. Conchyl., pi. 2, fig. 31. It is 

 quite evident that the figure represents a young individual. The 

 Texan specimens whether of this species or not may be character- 

 ized thus : Moderately tapering ; smooth and square at the minor 

 aperture, the angles slightly intensified by a heavy raised line on 

 each ; thick ; below, four more angulations appear making the 

 shell octagonal ; still lower the interspaces are surcharged with 

 ribs or striae so that at base the shell shows 16, 32 or even 64 ribs. 



Range in depth. - From 2,465 to 2,871 feet. 



