1913.] NATURAL SCIENCES OF PHILADELPHIA. 383^ 



locality uncertain. On p. 53 of Forbes' article, he states that "Helix 

 kellettii and pandorce, both new, are probably from the same country 

 [i.e., neighborhood of the Columbia River], though the box in which 

 they were contained was marked Santa Barbara. " On p. 55 he saj'^s, 

 "collected near the Straits of Juan del Fuaco [Fuca]."'^ 



The Santa Barbara Island Helix of this type is tnjoni Newc. H. 

 pandorce must have come from some southern locality. Since speci- 

 mens exactly resembling Forbes' figure were taken by Anthony and 

 others on San Benito Island, off the north end of Cerros Island, that 

 place may for the present be taken as the type locality, as no other 

 place has yet afforded shells agreeing so well with Forbes' figures. 



San Benito, or "Los Benitos," is west of the north end of Cerros 

 Island and consists of two or three small and very barren islets. 

 The name has also been spelled "San Bonito" (Captain C. M. 

 Scammon) . 



Though we are considering Los Benitos the type locality of H. 

 pandorce, it must be said that we have no definite information of 

 where the original lot was taken. The Herald touched Cerros Island, 

 and left the Pandora behind to complete the survey. No further 

 report of the movements of the Pandora is given in the narrative, 

 but it is not unlikely that S. Benito was visited in the course of the 

 survey. The fact that Forbes named the species for the Pandora 

 may be taken, in the absence of any information to the contrary, as 

 some indication that it was obtained by members of the Pandora's 

 surveying party. 



The locality "Santa Barbara, on Margarita Bay, Lower California, 

 Forbes," quoted by Dall, I am unable to confirm, as I can find no 

 place or bay so named on the coast of Lower California, on maps 

 acces.sible to me. 



Dall has noted that this small species "varies from white to dark 

 gray above, and below may be white or banded with ashy-gray. 

 The nucleus is, however, invariably of a livid purplish color, and the 

 surface is dull and conspicuously striate." It is sometimes pure 

 white (pi. XV, fig. 23), or has a few diffuse reddish-purple bands 

 on the last whorl (pi. XV, figs. 21, 22), the apex whitish or dark 

 (fig. 22 photographed abnormally dark). 



The typical form (pi. XV, figs. 17, 18, 19, 20) is dull purplish above 

 and banded below the periphery on a creamy ground, the apex purple 



* The Spanish Captain de Fuca has recently been canonized by a Cahforniaa 

 conchologist, Bull. S. Cal. Acad. Sci., X, p. 54, 1911. 



