24 
251 Chiton Pp nceeian mee hartwegii Cpr. 
This with the two following are the more common ipecian) 
252 Chiton (Maugerella) conspicua Cpr 
Abundant beneath bowlders on shingle beaches. San Pedro; 
San Diego. Todos Santos bay. 
253 Chiton (Stenoradsia) magdalenensi; Hds 
Beneath bowlders at False bay; not rare. 
254 Chiton (Pallochiton) lanuginosa (Cpr) Dall, 1878 
[Hemphillia lanuginosa Cpr. MSS. The generic name was 
already preoccupied in Limacide. D.] 
255 Chiton (Lepidopleurus ?) pectinulatus Cpr 
San Diego, Cal. 
256 Chiton (Callistochiton) decoratus Cpr 
San Diego, Cal. 
257 #Chiton (Nuttallina) scabra Reeve 
San Diego, Cal. 
258 Chiton (Mopalia) ciliata (See No. 1280) 
259 Chiton (Mopalia) lignosa acuta Cpr 
260 Philine, species indet. 
Flats on shores of San Diego bay, with Haminea vesicula. 
261 Atys nonscripta A Ad 
Rare at San Diego. 
262 Tornatella punctocezlata Cpr 
Not common. 
263 Tornatina eximia Baird 
San Diego bay [Described from Vancouver. D.] 
264 Aplysia californica Cooper 
Ocean beaches among sea-grass or in rock pools. 
265 Doris sanguinea Cooper, Cal ac pr 2:204. 
Under rocks, San Diego; rare. 
[Note.—The identifications of these nudibranchs are partly 
provisional in the absence of typically named specimens or fig- 
ures. D.] 
§Asteronotus. Brilliant red, with few large black spots irreg- 
ularly distributed, surface smooth; dorsal tentacles short; bran- 
chise composed of 8 simply pinnate rays, expanding close to the 
posterior end of the body. Length %, breadth 4% inch, height 
about the same. Under stones in San Diego bay, rare. 
Orcutt No. 22, among sea-grass and under stones on rocky 
beaches. Cooper, Cal. ac pr 3:58, reports: ‘‘4 specimens from 
Santa Barbara with D. montereyensis. Differ from original in 
having the black spots very small. Tentacles acute, cylindric- 
conic, retractile into a cavity bordered by a toothed membrane. I 
cannot discover the stellate valvular structure of the branchial 
openin g which characterizes the genus Asteronotus, in these spec- 
imens.”’ 
