51 



ornamented with fine distinct lirra faintly decussated with 

 lines of growth ; edge entire, sometimes transparent ; colour 

 olive with greenish gray spots ; deep olive approaching black ; 

 greenish gray with network of brown ; yellowish, marked with 

 zigzag lines of brown, pale transparent tortoise-shell, or, 

 rarely, beautifully and regularly rayed with broad lines of 

 brown on a pale green ground. Interior Avith a transparent 

 or dark olive margin, rather evenly circumscribed by a bluish 

 white porcellanous enamel, which is opaque, opalescent or 

 translucent, showing external pattern, spatula imperfectly 

 defined in various shades of brown and often absent. Average 

 dimensions. Long. 14, Lat. Hi, alt. 4|. 



Animal very pale yellow, base of foot sometimes a little 

 darker ; mantle translucent, muscular attachment silvery ; gill 

 plume long, coarse, and conspicuous ; head somewhat large 

 and livid ; tentacles pale purple brown, rather long and fine 

 pointed ; eyes conspicuous at external base, and somewhat on 

 upper side ; buccal mass i-ed and fleshy ; jaws stout, trans- 

 lucent cartilaginous ; odontophore about a fourth longer than 

 the shell, composed of pairs of broadly lanceolate recurved 

 teeth, concave on the inner side and convex on the recurved 

 side. The pairs of teeth are altei'nately large and small, the 

 larger pairs having a broad short cusp on the outer side. 



This species often so closely resembles A. testudinalis, Mull. 

 that I was inclined to believe it is the same, but the teeth are 

 slightly difterent That shell is found in N.-East America, 

 in all the circumpolar seas, and in Japan, from 4 to 48 fathoms. 

 Professor Forbes (Brit. Moll.) says that the eyes aie always 

 at the infernal base of the tentacles ; this peculiarity I have 

 met in some specimens but rarely. Common everywhere iu 

 pools, under stones. 



AoMiEA Flammea. Ouoy and Oaim. Voy. cle V Astrol. Vol, 

 3, p. 354, pi. 71, fig. 15-24, as Patelloida. Shell oblong, 

 elliptic, convex and turgidly conical, apex anterior acute and 

 moderately inclined, shell somcwliat solid, Avitli obsolete radiat- 

 ing stria}, which, however, are seldom visible ; lines of growth 

 numerous and conspicuous ; of varied colour, but generally 

 marbled olive, fuscous brown and dingy yellow, retic- 

 ulated or in straight or forked lines ; interior margin acute 

 and rayed or reticulated a deeper brown than exteriorly; 

 spatula brownish, badly defined and interrupted, circumscribed 

 by a ring of faint translucent enamel marking the muscular 

 attachment. 



Animal creamy white, base of foot dingy yellow ; head 

 small, tentacles short and swollen, eyes at base above, bran- 

 chial plnme very inconspicuous, odontophore scarcely length of 

 shell. Unfortunately I have mislaid the specimens I reserved 



