200 



3048 Hemphill, Henry: 



Notes on the animals of some West Coast shells. Zoe 3:350. 

 Gives the following descriptions (numbers 3049-3051). 



3049 Trivia solandri Gray. 



"A single living specimen of this beautiful little mollusk re- 

 cently collected by Miss Ida M. Shepard, at Ballast Point, San 

 Diego Bay, and which she kindly brought to me for examination, 

 enabled me to make the following note on the animal. 



"When the animal is fully extended, the mantle lobes com- 

 pletely envolop the shell. The lobes are of a brownish flesh-color, 

 thickly though not closely crowded with mammillated tubercles, 

 about thirty-five on each side, flecked and frosted with whitish 

 specks. The tubercles vary some in size and form, the larger ones 

 being rounded and broad at the base, while the smaller ones are 

 narrower and more conical. The nipple-like processes that rise 

 from their summits vary in number from 1 to 4 on each tubercle, 

 their tips being also frosted with whitish specks. The spaces be- 

 tween the tubercles are a shade darker than other portions of the 

 mantle, and peppered over with irregular black specks. The edges 

 of the mantle lobes that meet on the summit of the shell are light- 

 er in color than other portions of the mantle, and are also covered 

 with black specks like those between the tubercles. 



"When the animal is in motion the proboscis extends forward 

 like the bowsprit of a boat; it is about V 2 an inch long, a shade 

 or two lighter than the mantles, flecked with whitish specks like 

 those on the tubercles, with its end slightly expanded and edged 

 with white. Two slender tentacles about 5-16 of an inch long 

 when fully extended protrude from the head near the base of the 

 proboscis, each one bearing a black piercing eye, about midway 

 between their tips and the head of the animal. 



"The foot is about as broad as the shell, truncated in front 

 and roundly pointed behind, when the animal is in motion. The 

 front of the foot is marked beneath by a very fine transverse dark 

 line, which perhaps serves to define the front edge of the sole. 

 The sole is lighter colored than other portions of the animal that 

 are exposed outside of the shell, and is beautifully and profusely 

 flecked with very small whitish dots. 



"The animal was slow in its movements, its motion being a 

 continuous glide around the vessel in which it was confined, but 

 most of the time it remained stationary at the edge of the water, 

 as if waiting for the tide to come in, or a chance to escape." 



3050 Conus californicus Hinds. 



"The body of this mollusk is whitish in color, and profusely 

 dotted over with black specks that frequently coalesce near the 

 margin of the mantle. When the animal is in motion the foot 

 extends about \i of an inch beyond the anterior and posterior 

 ends of the shell. It is truncated in front and bluntly pointed be- 

 hind. The sole is white and sparsely sprinkled with black specks. 

 The motion of the animal is a constant glide. The proboscis is 

 black, and about V& an inch long when fully extended, and seems 

 to be a specialized portion of the animal's mantle, rolled together 

 with the lower edges in contact but not joined. It curves over 

 and above the back of the shell, as the animal moves forward. 

 Two small tentacles, of a dark color, each 5 mm. long, protrude 

 from the head near the base of the proboscis, bearing two small 

 keen eyes, which are situated about half way between the tips and 

 base of the tentacles. 



The operculum is horn-color and claw-shaped, a portion of the 



