BIVALVE SHELLS. 171 



fuscis grisea radiis duobus castaneis latis interruptis ornata, 

 tvansversim et regulariter tenue sulcata, sulcis antice minori- 

 bus, in medio latioribus eminentioribusque, postice angustiori- 

 bus et leviter undulatis ; lunula livida, concava, laevigata, vix 

 distincta ; area elongato-laciniata, plana, laevigata, livida, lineis 

 violaceis liturata, valvis intus albis ; margine cardinali antice 

 et jiostice violaceo maculato ; sinu pallii angusto, obtuso, mar- 

 ginibus parallelis. 



Tapes biradiata, Desk. Proc. Zool. Soc. 1853. 



Var. ^. Testa minore, turgidiore radiis evanescentibus ; valvis 

 raaculis minimis et lineis angulosis irregularibus ornata. 



Hab. Puteao, Philippinarum, Coll. Cuming. 



34. Tapes quadriradiata. 



T. testa transversa, elliptica, turgidula, insequilaterali, utroque 

 latere obtusa, antice angustiuscula, albo-lutea, lineis fuscis 

 angulatis, numerosis densissime picta et quadriradiata ; radiis 

 maculis quadratis fuscis et albis subarticulatis ; striis trans- 

 versis regularibus numerosis depressiusculis, postice planis et 

 latioribus ; lunula fusco-violascente, elongato-angusta, polita, 

 fusco dense lineolata ; area angusta, excavata, in medio ma- 

 cula violaceo-livida notata ; valvis intus pallide luteis ; sinu 

 pallii lato, semielliptico. 



Tapes quadriradiata. Desk. Proc. Zool. Soc. 1853. 



Hab. Insulae Philippinenses. Coll. Cuming. 



35. Tapes undulata. B.M. 



T. testa ovato-oblonga, pallide fulva, inferne violascente, lineis 

 rufis aut violaceis angulato-flexuosis reticulata, laevi, lineis 

 tamen impressis margini ventrali subparallelis, undulatis, 

 utrumque latus non attingentibus exarata ; caeterum T. textili 

 similis. 



Venus undulata. Born, Test. Mus. p. 67. 



Dillw. Cat. p. 204. no. 106 (pro Bornii synonymo). 

 Venus rimosa, Phil. Zeits. fiir Malac. 1847, p. 88 ; Abbild. 



Conch, p. 25. pi. 7. f. 7- 

 Tapes rimosa, Sow.jun. Thes. Conch, p. 682. pi. 146. f, 29. 



Hab. China (Cuming). 



36. Tapes textrix. B.M. 



T. testa ovato-transversa, insequilaterali, utroque latere obtusa, 

 subattenuata, glaberrima, pallide flava, lineis purpureis angulatis 



8* 



