MOLLUSCA. 79 



84. VENUS, Linnmis. 



1. Venus Philippinaeuu. PI. XXII. Fig. 10. V. testa oblongo-ovata, antice truncata, fulva, 

 fusco variegata, obscure radiata, radiatim lirata, liris nmnerosis, subundatis, ad latera decussatim nodulosis ; 

 intus partini violacea. 



Hab. Philippine Ai'chipelago. 



This and the following species belong to that section of the genus which partakes of the 

 character of Pullastra. 



2. Venus tessellata. PL XXII. Pig. 11. V. testa oblongo-ovata, antice truncata, crassiuscula, 

 fusco alboque strigata et tessellata, radiatim niultilirata, transversim tenuissime striata, lunula lanceo- 

 lato-ovata. 



Hab. Philippine Archipelago. 

 A dark ash-rust shell, beautifully mottled and streaked throughout with white. 



3. Venus Labuana. PL XXI. Pig. 16. V. testa subtriangulari, gibbosa, antice truncata, postice 

 flexuosa, acuminato-rostrata, albida, lineis nigricantibus acute angulatis ornata, concentrice valde sulcata, 

 sulcis irregularibus, margine ventrali postice sinuato. 



Hab. Island of Labuan. 



This fine species, though not apparently new, does not seem to have been described. 



4. Venus costellifeiia. PL XXI. Pig. 18. V. testa oblongo-ovata, subtrigona, subsequilatera, 

 alba, rubro sparsim variegata, longitudinaliter costata, costis confertis, decussatim plicatis, plicis semiluna- 

 ribus, confertis, posticis squamulosis. 



Hab. Philippine Archipelago. 



Very closely ribbed, the ribs being densely sculptured throughout with close-set 

 semilunar folds. 



5. Venus quadrangulaeis. PL XXIV. Pig. 7. V. testa cpiadrato-ovata, subcompressa, crassius- 

 cula, concentrice tenuiter et irregulariter striata, paUide straminea, nitida, umbonibus roseis, latere antico 

 brevi, postico multb longiore, lunula parum distincta. 



Hab. Corean Archipelago. 

 Peculiarly square-formed, of a light shining straw-colour, with pink umboes. 



6. Venus elegans. PL XXTV. Pig. 13. V. testa oblongo-ovata, calcareo-alba, lamellis concen- 

 tricis subirregularibus ad latus posticum majoribus ornata, lunula cordata, parva. 



Hab. Eastern Seas. 

 An elegantly-formed species, delicately sculptured with irregular concentric lamellae. 



