722 



55. Venus discrepans (pi. civ. f. 65), Sowerby, Pro. Zool. 

 Soc. 1835. p. 22. 



" V. testa elliptica, crassa, albicante, fusco subradiatim picta ; 

 latere antico breviore, subproducto, postico subdeclivi ; marginibus 

 depressis; costis concentricis postice lainellosis, medio obtusis, 

 latiusculis, antice sublamellosis ; umbonibus subprominentibus ; 

 margiue ventrali rotundato, intus denticulato." 



" The blunt, rather broad, concentric ribs of the middle part 

 of each valve are speckled with brown on their upper surfaces, 

 and delicately crenulated on their ventral margins." At the sides 

 they are terminated in lamina?. 



Islay, Peru. Cuming. 



56. Venus Cypria (pi. clvii. f. 113), Sowerby, Pro. Zool. Soc. 

 1852, p. 43. 



" V. testa oblonga, subtrigona, concentrice lamellosa, lamellis 

 crassisj obtusis, postice tenuioribus, subappressis, alba, fusco-ra- 

 diata ; linea dorsali rectiuscula, declivi ; area postica lata, fuscata ; 

 impressione cordiformi antica conspicua, fusca ; margine ventrali 

 intus integerrimo." 



Smaller and more triangular than V. Paphia, with the ribs 

 more elevated, and, instead of being suddenly interrupted, become 

 gradually laminar and turned outwards. 



Island of Plata, West Columbia. Cuming. 



57. Venus fasciata (pi. clvii. f. 114, 115), Donovan, t. 

 170. Chemn. f. 277-8. V. Brogniarti, Payr. Moll. Corse, p. 51. 

 pi. 1. f. 23, 24, 25. An var. ? V. decipiens, Hanky, Sp. of Shells, 

 App. Wood's Suppl. pi. 16. f. 22. 



V. testa elevata, subtrigona, crassa, compressa, alba vel fulva, 

 rubro vel fusco radiatim fasciata, concentrice costata ; costis cras- 

 sis, insequalibus, rotundato-planulatis, prope umbones lamellatis ; 

 area dorsali planulatim excavata, sparsa; lunula paululum rece- 

 dente, indistincta; margine interno minutissime crenulato. 



The thick, broad, and rather flattened concentric ribs of this 

 flattish, trigonal shell, are rather more laminated at the sides and 

 near the umboes than in the centre. In the variety named V. de- 

 cipiens a few of the lamina? are more produced at the sides. 



British and Mediterranean seas. 



