37 



MONOCEROS ARMIGERUS. Tab. 15, fig. I. 



Short subfusiform, ventricose, ponderous, with two series of 

 distant prominent thick spines, one on the shoulder, the other near 

 the middle of the large whorl ; base reflected, carinated ; labrum 

 with a short tooth and two inferior small teeth. 



Syn. Fusus TAITII, Lea, Con. p. 152, pi 5, fig. 159. 



Locality. Claiborne, Alab. 



Resembles Murex miuax. Brander. The spines near the la- 

 brum in some specimens are an inch long. I referred it with a 

 mark of doubt to Melongena in No. 8, first edition. 



MONOCEROS VETUSTUS. Tab. IB, ftg.-B. 



Obovate, ventricose, thick, with obsolete spiral lines; summit 

 of the body whorl indented ; suture impressed ; groove profound, 

 between it and the base the shell is bicarinated and has a few im- 

 pressed lines; umbilicus profound; tooth very short. 

 .'Syn. M. PYKULOIDES, Lea, Con. p. 101, pi. 5, /. 166. 



M. FUSIFORM^, ib. p. 162, pi. 5, /. 167. 

 Locality. Claiborne, Alab. 



The umbilicus varies much in size in different specimens, and 

 is generally wanting in old shells. No. 4, first ed. p. 44. 



MELONGENA ALVEATA. Tab. 15. fig. 2. 



Subglobose, thick ; spire short; whorls with a broad furrow, dis- 

 tinctly marked on the shoulder of the body whorl ; a few distinct 

 and numerous obscure spiral striae; body whorl with a large obtuse 

 oblique carina extending to the base; umbilicated ; columella cal- 

 lous, flattened inferiorly ; aperture patulous. 



Locality. Claiborne, Alab. * 



fiyn. PYRULA. SMITHII, Lea, Con. p. 155, pi. 5, /. 162. 



The genus Melongena, Sowerby, seems to form a natural group 

 of shells very distinct from the true Pyrulce. I first described 

 this species in the American Journal of Science, vol. 23, p. 344. 



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