^''liiiTi '] PROCEEDING.S OF THE NATIONAL MUSEUM. 347 



exiiiiiiiicd ;it tlic tiiiic ;ni(l liiis since been sliowii, :is lintlicr sjteciiiicn.s 

 lijivc conic to liand IVoni otiier localities on the coast of Lower (Jali- 

 foriiia 



Hinds described tlie shell as having six varices, but his figures show 

 only three. Jieeve's description is correct in mentioning three varices 

 alternating with nodes or ribs, J thinlc that Hinds unintentionally 

 included the three internodes as varices in his description. 



The variation exhibited by luguhris is so great that it may ultimately 

 be connected with trialatus; the type of h((/nhris as figured is hardly 

 characteristic when the general faciesof a laige number of examples is 

 considered, it is to be regretted that the more appropriate name of 

 Valenciennes has to give way to that of I>roderip. 



Subfamily I'URPUKINyE. 



Genus PURPURA I'.niguiere. 



Purpura hippocastanum lAnno. 



A single living example of tins Polynesian species, occurring in the 

 Viti, Samoan, and i'elew islands, as well as in the Australian region, 

 was detected at Mulege Bay, on the eastern shore, Gulf side of the 

 peninsula of Lower California. 



Family TKITONIID^^]. 



(;eniis RANELLA Lamarck. 



Ranella cruentata Sby. 



This form, generally regarded as Indo-Pacific or Polynesian, collected 

 at the Viti Lslands ])y the late Andrew Garrett, was dredged l)y the 

 AlbatrosH (depth M fathoms, ro(;ky bottom) oft' Jjower ('alifornia in 

 latitude 22° 52', longitude 109° 55'. This is near Cape St. Lucas, the 

 extremity of the ]>eninsula. This adds anothei- Indo-Pacific form to 

 the many instances noticed in the P'isJM'r collection, and may be ex- 

 ])lained perhai)S by the great depth of water that i>revails so close to 

 the coast, and curves w^ell up into the (Julf of California, where the 

 1,500, fathom line reaches a ])oint tliat would be intersected or touched 

 by a line drawn across the Gulf from Cape St. Lucas to Mazatlan 

 and ieach(!s nearly up to the Tres Marias Islands on the south. In 

 \m'X the de])ths of 1,724 to 2,395 fathoms wei'e found between the end 

 of the peninsida and Corrientes.* (Mus. No. 1250G5.) 



The remarkable distribution of this species is still further corrobo- 

 rated by an exami)le collected by Mr. Charles T. Simpson, of the U. S. 

 National Museum, who detected it at the island of Utilla, on the coast 

 of Honduras. 



* Albatross Explorations, A. Agassiz in Bull. Mus. Comp. Zool., Vol. xxiii, No. 1. 



