94 American Seas hells 



Haliotis kamtschatkana Jonas Japanese Abalone 



Plate 2e 



Japan, southern Alaska to Point Conception, California. 



4 to 6 inches in length, elongate, with a fairly high spire. 4 to 5 holes 

 open which have raised edges. Outside of shell rudely corrugated, but a few 

 specimens may have weak, spiral cords. This is a small species, uncommon 

 in California, but increasingly abundant northward. 



Haliotis pourtalesi Dall Pourtales' Abalone 



Off the Lower Florida Keys. 



% to I inch in length, elongate, with 22 to 27 wavy, spiral cords. Out- 

 side waxy yellow to light-brown with a few irregular patches of reddish 

 orange. A light-orange band runs from each hole to the edge of the shell. 

 Inside pearly-white. A very rare species, and the only one recorded from our 

 eastern coast. It has been dredged from 6^ to 200 fathoms. Beware of young 

 specimens from other oceans labeled as this species. 



Fmnily FISSURELLIDAE 



(Keyhole Limpets) 



Subjamily EMARGINULINAE 



Key to the Genera of Emarginulinae 



a. Apex at the same level as the base of the shell: 



b. With an internal septum Zeidora 



bb. Without internal septum Nesta 



aa. Apex above the base of the shell: 



c. Slit at anterior edge Emarginula 



cc. Slit at anterior middle: 



d. Funnel around slit on inside Fiincuirella 



dd. No funnel around slit Rimula 



Genus Ewarginula Lamarck 1801 

 Emargifiula phrixodes Dall Ruffled Rimula 



Plate 17-0 



Off North Carolina to eastern Florida and the West Indies. 



Vz inch in length, thin but strong, and with a small, narrow slit on the 

 anterior slope of the shell near the margin. Base oval. Color translucent- 

 white. Interior glossy. Concentric cords and 20 to 24 radial ribs cross each 



