198 BULLETIN OF THE 



has many synonyms, but in regard to which Mr. Tryon's manual is in hopeless 

 confusion. It is, as far as plentiful material permits a judgment, perfectly 

 distinct from M. adustus. It varies greatly in its frondosity. The most pro- 

 fuse, long, and subdivided processes are found in the variety M. florifer Reeve, 

 which is found at Nassau, N. P. The typical form reaches as far north as 

 within 25 miles of Cape Fear, N. C, where it is found in 15 fms., off shore, in 

 the warmer water. It is abundant in Florida, the Keys, and the Bahamas. 

 I have seen no Antillean specimens. M. brevifrons Lamarck has been found 

 as far north as South Carolina, and is firmly established from Florida to Vene- 

 zuela, and in the Antilles. A specimen of M. quadrifrons Lamarck, from the 

 West Indies, is also in the National Museum. To this group, rather than to 

 Phyllonotus, the following species may be also referred. 



Chicoreus Hidalgoi Crosse. 



Plate XVI. Fig. 3. 



Murex Hidalgoi Crosse, Journ. de Conchyl., XVII. p. 408, 1869 ; XIX. p. 68, pi. i. 

 fig. 4, 1871. 



Habitat. Stations 155 and 158, off Montserrat, in 88 and 148 fms., sand, 

 bottom temperature 64° to 69°.0 F. ; Station 272, in 76 fms., off Barbados. 



This is an extremely pretty and distinct species which seldom attains much 

 more than an inch in length. It has been found in several places in the Lesser 

 Antilles, and always in deep water. 



Subgenus PHYLLONOTUS Swainson. 



The most remarkable American species of this group is also rather north- 

 ern in its distribution. P. fulcescens Sowerby* is in the National Museum 

 from the coast of North Carolina and also from Texas. It grows to a large 

 size and is the largest American species, but probably inhabits shallow water, 

 as none of the off-shore dredgings show any specimens. I have not seen any 

 specimens from the Antilles. 



The second species of this group found on the shores of the United States is 



Phyllonotus pomum Gmelin. 



Plate XVI. Fig. 2. 



Murex pomum Reeve, Conch. Icon., sp. 85 ; Gmelin, Syst. Nat., p. 3527, no. 6. 

 Murex oculatus Reeve, op. cit., sp. 36, 1845. 



* Conch. 111., p. 7, fig. 30, 1840. It was afterward published as M. spinacosta 

 Val. (MS.) in Kiener, Icon. Murex, p. 49, pi. xli. fig. 1, 1843, which has been 

 amended to spinicostata. 



