72 

 and adds "single valves not plentiful." 



983 Phyllaplysia taylori 



"The Rev. Dr. Geo. W. Taylor, of Wellington, British Colum- 

 bia, has recently forwarded to me some marine slugs which were 

 found on floating sea-grass near Nanaimo, Vancouver Island. An 

 examination shows that these animals represent a genus, Phylla- 

 plysia, not hitherto known except in Southwestern Europe, and 

 an undescribed species. The animal in most respects differs very 

 little from P. lafonti Fischer, the type of the genus. It is sub- 

 translucent, smooth, of a uniform pale lemon-yellow color, very 

 much flattened, resembling some of the Planarian worms. The 

 specimens sent by Dr. Taylor are presumably somewhat contracted 

 by alcohol, which may account for the form of the rhinophores 

 and tentacles, which are short, conical, and strongly transversely 

 wrinkled, but without tuberculation or color pattern, being of the 

 same pale yellow as the rest of the body. The 'rainure' extending 

 from the right tentacle to the brachial opening is a plain line 

 barely perceptible; the branchial pit with 2 minute lobes is short 

 and in about the same relative position as in P. lafonti. The body 

 is much depressed and the margins thin, sharp and even. The 

 eyes appear as conspicuous small black spots in front of the 

 bases of the posterior tentacles. The general form is elongate 

 oval, the ends of the rhinophores, unlike the tentacles, are blunt, 

 and these organs are sulcate inferiorly as usual. The length of 

 the largest specimen, as contracted in alcohol, is about 20 mm., 

 and the breadth about 9 mm. I propose for it the name of P. 

 taylori in honor of its discoverer. Of the 3 other species known, 

 P. lafonti is pale green, with darker bands and numerous violet 

 spots; P. depressa is green-buff, variegated with black; and P. 

 limacina is of a dusky green. All of these are from western and 

 southern Europe." — Dall Nautilus 14.91-92 (D 1900). 



984 Physa anipullacea Gould. 



Shell ovate-ventricose, shining, horn-colored; spire elevated, 

 acute; whorls 6, last one inflated; suture decidedly impressed; 

 aperture broadly ovate, five-sixths the length of the shell; lip thin, 

 submargined with red; columella quite flexuous, covered with 

 callus. Length 25, diameter 13 mm. 



Living: Lake Oyosa, Washington; Oregon. 



985 Physa blandi Lea. 



Sub-alpine Sierra Nevada to Sacramento Valley. Marysville, 

 Cal. 



986 Physa carltoni Lea. 



Near Antioch, middle of Sacramento Valley, Cal. 



987 Physa costata Newcomb. 

 Clear lake, California. 



988 Physa diaphana Tryon. 



Lake county, California, to Cape St. Lucas. 



989 Physa Gabbii Tryon. 



Shell thin, closely striated by the lines of growth; body whorl 

 inflated, its upper half flattened, so that the lip appears angulated 

 in the middle; spire moderate, apex acute, whorls 6, convex, with 

 distinct sutures. Color light corneous, very much polished with- 

 in; lip margined with red. Length 25, diameter 13 mm. 



Living: Mountain lake; Santa Ana river, Cal. Baja California. 



