VENUS. 



Tlate IV. 



Species 10. (.A[as. Cuming.) 



Vexus puerpera. Veil. Icstd orbiculari-cordald, ventri- 

 cosft, crasset, albidd, grisco radiata, ferrngiueo-fusco 

 prceclpiie nd latiis ponticnm tincid H macidatd, radi- 

 atini densi ohtiise coslatil, conceidrice lamiiuitd, laiiihiis 

 siibdislantiljHS, srspe irrcyidaribus, latere posllco siih- 

 JU'.viioso-tnincnlo, anlico hrevissimo. 



The ventricose Venus. Shell orbicularly heart-shaped, 

 ventricose, thick, whitish I'ayed with grey, spotted 

 and stained, especially on the posterior side, with 

 rust-brown ; radiately closely obtusely ribbed, con- 

 centrically laminated, laminae rather distant, often 

 irregular, posterior side slightly flexuously truncated, 

 anterior very short. 



LiNN.Eus, Mantissa, p. 545. 



Hab. Philippine Islands ; Cuming. 



The rust-stained colouring of this well-known species is 

 not an unimportant character. 



Species 11. (Mus. Cuming.) 



Venus foveolat.*., Ven. testa suborbiciitari, compres- 

 siusculd,fulvescenle-albu, ad latera cameo iiiictd, con- 

 centrice dense lamellatd, lamellis rugosis, valde irregu- 

 laribus, lunuld subampld, ared tigmneiiti eloiigato- 

 excavaid. 



The pitted Venus. Shell somewhat orbicular, rather 

 compressed, yellowish-white, flesh-tinged at the sides, 

 concentrically densely lamellated, lamellae rough, very 

 irregular, lunule rather large, liganientary area elon- 

 gately excavated. 



SowERBY, Thes. Conch, part xiv. p. 73(i. 



Hab. Martinique. 



The name of this species is apt to mislead ; it lioes not 



refer to any sculpture of small pits, but to a characteristic 

 elongated excavation of the liganientary area. 



Species 13. (Mus. Cuming.) 



Venus tznuilajiellata. Fen. testa ovatd, subciuiei- 

 formi, sordide calcareo-albd, conceidrice lamellatd, 

 lamellis subregidaribus, 7-ecurvinsculis, ad latus aidi- 

 cuiii corrngatis, latere postico oblongo, subtruncnto. 



The thin'ly-lamellated Venus. Shell ovate, .some- 

 what wedge-shaped, dull chalk-white, concentrically 

 lamellated, lamelte rather regular, a little recnrveil, 

 wrinkled at the anterior side, posterior side oblong, 

 slightly truncated. 



SowEKBY, Thes. Conch, part xiv. p. 733. 



Ilab. Valparaiso (in sandy mud at twenty fathoms) ; Cu- 

 ming. 



Of a dull clialk-white character, with the ridges ratliei' 

 inclined to form irregular wrinkles on the anterior side. 



Species 13. (Mus. Cuming.) 



Venus exalbida. Ven, tesld snbeUiplico-ovald, sordidii 

 calcareo-albd, concentrici dense elevato-striatd, striis 

 riidibus, valde irregidaribiis, latere poslieo curvato et 

 Jlexu oso-trnncato. 



The white Venus. Shell somewhat elliptically ovate,, 

 dull chalk-white, concentrically densely elevately 

 striated, strire rude, very irregtdar, posterior side 

 curved and flexuously truncated. 



CiiEMNurz, Conch. Cab. vol. xi. p. 225. pi. iO'l. f. 1<,I74. 



Ilab. Strait of ^Magellan. 



A densely rudely striated chalk-white shell, peculiarly 

 curved and flexuously striated down the posterior side. 



April, 1863. 



