PLATE XVII. 



AsTARTE {continued). 



Figs. 



]. A. {I'^n'jilii/I(i ) hvvis (i'liilL). Claxl)y iroiLsluiiu, licmiiwurLli llavcii. Ijct't 

 valvf. York Museum. (P. 115.) 



2-7. A. {/'JripJii/ld) nh-i(ilii, 'Sow. Upper GreensaiHl, Hlackdowii. (I'. IIG.) 



2. British Museum, No. L 587. a. yi'A\\ v;i1vl' ; h, luturiur ul' the same ; c dursal 



view. 

 3 Sudjfwick Museum, luteriur uf let't valve (tliu teelli are drawu iu part from a 



siiecimou iu the Museum of Practical Geology, No. 13187). 

 •1. British Museum, No. L 17076. Right valve. 

 .5. Bristol Museum, No. 636. Eight valve. 



6. Museum of Praetical Geology, No. 13188. Rigljt valve. 



7. Bristol Museum. The Tyjie of Asiarte coiiciiiuu. Sow. Left valve. 



Genus — Opis, Dcfntnce. 



8-12. 0. iieucoiulcnsix, d'Orh. Lower Greeiisand, U[)ware. (!'. Jly.) 



8. Sedgwick Museum, a, right valve; h, anterior view of Ixith valves; c, jjosterior 



view. 



9. Sedgwick Museum, a, left valve ; b, ])osterior view. 

 10 Sedgwick Museum, a, right valve; h, auteiior view. 



11. Mr. J. F. Walker's Collection, a, right valve; ?;, anterior view ; c, jMisterinr 



view. 



12. Mr. Walker's Collectiou. luterior of right valve. 



13,1-1. 0. sp. Upper Groensaiid, Haldoii. British Museum, Xu. li 17114. 

 (P. 120.) 



13 (I, left valve ; b, interior ; c, anterior view. 



1-1 ((, left valve ; 6, posterior view ; c, dorsal view. 



