382 Trans. Acad. Sci. oj St. Louis. 



West Indies, and on the Atlantic coast of the United States 

 from Cape Fear to West Florida. I have found it on the 

 northern coast of Yucatan. Its extreme southern range is 

 Carthagena. Marex salleanus, A. Adams, which was made 

 a synonym of Marex pomum, Grael. by Mr. Tryon (Man. 

 Conch. II, p. 98) is a synonym, instead, of rufus. Murex 

 Horifer Keeve is a variety found at Nassau, N. P. 



Murex recticornis Martens. 



Murex recticornis Marfceus, Jahrb. Deutsch. Malak. Gesell., VII, p. 81, 

 pi. iv, fig. 3. 



This species is very closely related to Murex cervicornis 

 Lam., from the same faunal region, and may prove eventu- 

 ally to be but a variety of that species. It is described as 

 follows : — 



" Shell fusiform, solid, canal slim, rather long, slightly 

 curved, spire subturreted; whorls 7 with three varices ; varices 

 rounded, spire very narrow, the last whorl armed with two 

 long, acute spines; distinctly spirally lirate, provided with 

 two equal folds between the varices; aperture round, small» 

 the canal nearly closed, double the length of aperture, col- 

 umella arcuate, callous quite thick, suberect, slightly tuber- 

 culate above; outer lip erect, crenulated, armed with a scale at 

 the foot of the last varix; canal provided with a series of 

 spines; unicolored dull brown. Alt., 42; diam., 17 mill. 

 Aperture alt. (including canal), 29 mill." 



Collected at East Australia, in 76 fathoms. 



The species is also very closely related to Murex longicor- 

 nis Dunker, and is perhaps more nearly related to this specie* 

 than to cervicornis, since Von Martens does not mention that 

 the spines are bifurcated in any way. 



Murex capucinus Lam. 



Murex capucinus Lara., Auim. sans Vert., IX, p. 576. 



In a letter to Mr. Tryon, Mr. R. E. C. Stearns says; " This 

 species is certainly found at the Philippines, where I have re- 

 ceived it from reliable collectors." The species has a wide 

 distribution, being found in Valparaiso, Porto Rico and the 

 Philippines. 



