214 Zoological Society. 



Anomia cymbiformis, Maton ^ Racket, Linn. Trans, viii. 104. t. 3. 

 f. 6 ; Mont. Supp. 64. 



Anomia coronata, Bean, Mag. N. Hist. 



Anomia patellaris, Lamk. Hist. ed. 2. vii. 273. n. 2 ; Deles. Re- 

 cueil, t. 17. f. 3. 



Anomia pyriformis, Lamk. Hist. vi. 227, ed. 2. vii. 275. n. 5 ; 

 Deles. Rec. t. 17. f. 4. 



Anomia fornicata, Lamk. Hist. vi. 228, ed. 2. vii. 275. n. 6 = Enc. 

 M. 1. 170. f. 45. 



? Anomia membranacea, Lamk. Hist. vi. 228, ed. 2. vii. 275. n. 7 

 = Enc. Meth.i. 170. f. 1-3? 



? Anomia cucullata, Bruguihre, E. M. 70. 



Hab. European Seas. 



Coast of Africa ; Capt. Edward Owen. B. M. 



f f Asiatic. 



2. Anomia amab^us. 



Flat, white, smooth ; internally pearly, with a very thin disk. 



Upper scar moderate ; lower scars 2, rather large (nearly as large 

 as the upper one), confluent into a broad oblong scar. 



Hab. Philippines, Island Buraas (Jackass Island) ; on stones, sand, 

 ten fathoms. 



3. Anomia cyt^um. 



Shell suborbicular, smooth ; internally reddish. 



Upper muscular scar very large, subcordate ; lower 2, suborbicular, 

 smaller, nearly equal-sized ; the upper in the notch of the upper one ; 

 the lower hinder close to lower hinder edge of the upper one ; sinus 

 in lower valve large. 



Hab. China, River Zangtze Keang ; Fortune. Mus. Cuming ; two 

 specimens. 



4. Anomia dryas. 



Suborbicular, flat, white ; upper valve internally and radiately lined. 



Upper scar large, oblong ; lower scars 2, small, circular, nearly 

 confluent, placed side by side nearly on the same line. 



Hab. Singapore ; on dead shells, ten fathoms, in coarse sand and 

 gravel. Mus. Cuming ; one small specimen. 



5. Anomia ach^us. 



Shell purplish, smooth : umbo rather acute ; upper valve generally 

 convex ; inside purplish white. 



Upper muscular scar large, lower edge slightly arched ; lower 

 scars 2, small, nearly equal-sized ; the hinder rather lower than the 

 other. 



Hab. Indian Ocean, Kurachee, mouth of the Indus. Brit. Mus. 

 and Mus. Cuming. 



Major Baker has kindly sent to the Museum a very large series of 

 the dorsal valves of this species, collected at Kurachee. They are ex- 

 tremely variable in form, surface, colour and thickness, and they also 

 offer considerable variety in the disposition of the muscular scar. In 

 all the upper scar is largest, but variable in shape from round to 



