226 MAZATLAN UNIVALVES 
“Would accord pretty well with Ph. perforata, but is not 
perforate,” at any rate in the adult state. Only one very dead 
shell and some fragments were found of this species, which 
appears to be sufficiently common on the Californian coast, 
where it represents the Ph. perforata of the tropical fauna. In 
the Sta. Barbara specimens, the colour and general appearance 
resemble the small variety of Ph. pullus. The operculum 
only differs from that of Ph. perforata ‘in having the wrinkles 
rather coarser, and not covering quite so large a surface: this 
however may be only the effect of age. One of Dr. Gould’s 
specimens from San Diego measures Jong. °22, lat. *13, div. 60°. 
The Mazatlan shell is much smaller. 
Hab.—San Diego, Mr. Blake §& Dr. Webb.—Sta Barbara, off 
zoophytes, Col. Jewett—Mazatlan ; 1 dead sp. in shell wash- 
ings ; L’pool Col. 
Tablet 1086 contains the specimen. 
Genus BANKIVIA, Beck. 
Beck, in Krauss, Sudafr. Moll. 1848.—H. & A. Ad. Gen. i. . 
425,—Phil. Handb. Conch. p. 212. 
285. BaNKIVIA VARIANS, jun, Beck. 
Phil. in Kust. Mart. p. 33, pl. 5, £. 1—5.—Krauss, Sudafr. 
Moll. p. 105, pl. 6, f. 7. 
= Phasianella fasciata, Whe. Syn. Moll. Nov. Holl. ed. 2, p. 141. 
+P. undatella, Whe. loc. cit. 
+P. fulminata, We. loc. cit.— Anton Verz. p. 61, no. 2137. 
One very young fresh specimen of this well marked shell was 
found on the back of a Chama. It exactly resembles young 
shells from Australia. How it had found its way from its 
native haunts, it is impossible to say. It is of the uniform red 
variety, with a dark sutural line. There are 4 turns of the 
spire, with a very flattened apex. Long. 06, lat. °05; diver- 
gence of last whirl 40°; the next would probably be much less. 
Anton’s name has precedence over that adopted by Krauss, 
teste Gray. 
