96 THE NATTTILUS. 



Californian region, and had tlie good fortune to be able to inspect 

 nearly all the collections in private or public hands, which were of 

 importance for my studies. I propose Irom time to time to give the 

 readers of the Nautilus the benefit of some of my notes made dur- 

 ing the past summer. 



One of the most esthetically attractive collections on tlie coast, 

 containing large series of many of the rarer Callcrnian marine shells, 

 is that of Di-. R. H. Tremper at Ontario, Cal. These specimens are 

 mostly from southern California, and comprise besides mollusca a tine 

 series of the beautifully colored brachiopods of the region, Laqueus 

 californicus, the attractive crimson-tinted variety {iiibescens) of 

 Terebralula transversa, tlie white Teiebratulina kiiensn (also known 

 from Japan) and the gorgeous vermilion-streaked Terebratuhi obso- 

 leta. Attached by their peduncles to a rock brought up on a fisher- 

 man's hook from GO fathoms off Redondo were the first and last 

 mentioned species, wilh another which I did not recognize as Cali- 

 fornian, and which proved on comparison to be the Japanese Tere- 

 bratulina crossei Davidson, now for the first time reported from the 

 eastern border of the north Pacific. Another shell which seemed 

 particularly attractive, and which was new to me, was a variety of 

 Lottia giganlea, which may be called alboDiacitlata, offering, instead 

 of the usual brown and grey upper surfa'e, the feature of being 

 spotted with rounded white maculations regularly disposed. A pretty 

 variety (called by Mr. Hemphill vai-. Tremperi) of the fine purple- 

 brown Murex carpenteri Dall is decorated with two neat white bands 

 below the periphery. This was obtained by Dr. Tremper in 35 

 fathoms, off Newport, with many of the typical form. 



This collection contains, among other things, a most brilliant 

 series of the Pecten liastatus Sowerby in a great number of color 

 varieties and fully the size of the northern P. hericeus Gould. On 

 some of these, near the byssal notch, w'ere seated examples of Copu- 

 las californicus, now for the first time reported as commensal with 

 any species except P. dieyensis. 



I may add to this note tliat through the intervention of a friend 1 

 was able to purchase at Venice a specimen of Haliotis crachtrodii, 

 which is believed by west coast collectors to be unique. It is a per- 

 fectly normal, moderate-sized specimen, probably obtained on the 

 coast of Los Angeles county, rather more elevated than the average, 

 and which has not been cleaned or modified in any way. Its pecu- 

 liarity consists in the fact that it has never possessed the slightest 

 trace of a perforation, even in the youngest stages, and there is not 

 even a suspicion of a notch at the margin. Other specimens like 

 Hemphill's remarkable xm-'wAy liohneri have been seen with very few 

 perforations (Stearns records one with only two holes and a notch), 

 but these had earlier perforations which had been closed up and were 

 more or less abnormal in other respects. The present specimen 

 differs from all of them in never having had any holes whatever. 



