23 _ BULI,KTIN 3 (104) 



659, pi. 16, fig^. 2.-- Fide Jeffreys. 

 Odostouiia conoidca Jeff., Brit. Conch., vol 4, 1857, p. 127. 

 Odontostomia conoidea Har. , 4tli Ann. &c., p. 121. 



Range in depth.'- Vrom. 440 to 458 feet. 



BITTIUM. 



Bittiiun galvestonense, n. sp. PI. 4, fig. 8. 



Syn. Bittium, allied to anuettcs, Har., 4th Ann. &c., p. 121. 



Specific characterization .-' General form as indicated by the fig- 

 ure; whorls about 7 ; apical 2 or 3 smooth ; below, strongly and 

 regularl)^ sculptured as follows : On each whorl four equal spiral 

 lines, crossed by rather fine longitudinal ribs of about the size of 

 the spiral lines ; labrum thin, but close behind it, a strong varix . 



This varix is occasionally found as far as one half whorl back 

 of the mouth, but this is exceptional. Several varices are some- 

 times found on various portions of the spire. The}^ often bend or 

 change the axis of the shell and invariably obliterate the longitud- 

 inal sculpturing in their immediate vicinit5^ 



This species resembles annettce Dall somewhat but is at once 

 distinguished b}- the number and equality of the spiral lines. 



Range in depth. — From 2,550 to 2.871 feet. 



Type.— Texas State Museum. 



CERITHIUM. 



Ceiithiian galvestonense, n. sp. PL 4, fig's. 9, a. 



Specific characterization .— General form as shown by the fig- 

 ures ; whorls about 10 ; i smooth, remaining spiral whorls mark- 

 ed by numerous broad and rather obtuse longitudinal ribs crossed 

 b}' spiral lines of varying size, finer above the supra-medial slight 

 carination, coarser below, and at base strongly crenulate ; bodj- 

 whorl with a strong varix ; canal slightly bent to the left. 



In old specimens the ribs, of the body whorl in particular, often 

 project at the shoulder, forming blunt spines. In such cases the 

 fine spiral striation of the humeral slope continues downward to 

 the first crenulated line. There are in some instances two varices 

 on the body whorl and occasionally they occur on the spiral volu- 

 tions. Rarely all spiral lines are more or less granular. 



Range in depth. — From 2,236 to 2,920 feet. 



Type.-'X^yjAs, State Museum. 



