or SOUTHERN INDIA. 287 



Sow., and quotes hcsides A. snbstriaia, heym. ^ pseitdo-sfria/i/, d'Orh. Pictet and Campiche 

 (Pal. Suisse, 4""^ ser., 3™'^ part., p. S'Z'Z,) add from Lyncb's exped. A. lintea and sub-llneolata of 

 Conrad. 



125. — Asiarte corbicula, Con., (Am. Journ. Conch., iii, p. 13), is changed by the same author 

 (American Journ. Conch., V, p. 4-3,) into Tetocardia crenalirata, Conrad ( .^=^ Astarle crenulirata, 

 Lea). I have already noticed the strange association of fossils which Mr. Conrad first quoted as 

 species of his genus Vetocardia, hut even those which he subsequently regards as typical of that 

 supposed genus are, I believe, as regards character of the hinge, not distinct from his Palceocardita. 



126 127. — Gouldia decemuaria and declicis, Con., (Am. Journ. Conch., v, p. 48), are from 

 New Jersey. 



128-130. — The following species occur in the South Indian cretaceous deposits : Grotriaiiia 

 jugosa, Gouldia planissima, and G. iri/joni.oides. 



Cardita (see Pal. Suisse, 4™ ser., 3""^ part., p. 339). 



The distinctions between Cardita and Myiilicardia can only be indicated from the external 

 shape of the shells ; which of them should be referred to Venericardia it is for the present quite 

 impossible to say. If we have to go by the comparison of recent forms with fossils, (and there is 

 no better course to be adopted), there certainly appear to be very few cretaceous Cardita. 



131-138. — C. Sanctce-crucis, Neocomiensis, quadrata, J'illersensis, Stabileana, Orbigni/ana, 

 Valdensis, fenestrata, are forms which are closely related to Mytilicardia ; it is possible that 

 Conrad's name Palaocardita may be more appropriate for them (vide p. 280), but I have no 

 good specimens of any of these species for examination. C. fenestrata is not unlike a Venerupis. 



139. — C. Meriani resembles in form Pleuromeris, and also Pteromeris, of Conrad. 



140. — C. Giirgj/acensis. 



141-152. — C. Dupiniana, (see p. 280), e.raltata, tenuicosta ( ? = Venericardia tenuicosta, 

 Sow, apud Fitton), clafkrata, rotundata, Constaiitii, Argonensis, Cenomanensis* dubia, Giierangeri* 

 tricarinata,* Cottaldina, are all of the same type and have to be referred either to Mijtilicardia 

 or to Palceocardita. 



153-154. — C.pai-vula and sentisiriata may he tvue Myfilicardiie, hut the specimens figured are 

 very imperfect. 



155. — C. Ge7iifzii, (Ven. tenuicosta, Sow., apud Geinitz) is a peculiar form which should be 

 carefully examined whether it belongs at all to the present group of shells. 



156. — C. granigera is either a true Cardita, or possibly a Pteromeris. 



157. — C. Rei/nesi is a true Mytilicardia. 



C. biloculata is an Opis (see p. 284). 



158. — C. Hebertiana is said to be a quadrangular, ribbed species ! 



159. — C. pinguis, Coquand, Mon. fitage Aptien de TEspagne, 1866, p. 122. 



160-164. — C. ForgemolU, Nicaisei, Delettrei, Benquei, and Bocclii are described by Coquand 

 from Algiers (Geol. and Pal. de la Prov. Constant., 1862, pp. 199-201, &c.). 



165-172. — C. eminula, stibquadrata , and subtetrica are from North America (see Meek's Cheek- 

 list of cretaceous fossils. Smiths. Misc. Coll., No. 177, 1869, p. 11). Conrad has besides from the 

 so-called lower eocene (? cretaceous) beds Venericardia Blandingi, densata, Hornii (^ planicosta, 

 Con., an ideiii Lam.)t, perantiqua, and regia (see Check-list eocene foss.. Smiths. Misc. Coll., 

 No. 200, 1866, p. 5). 



173. — C. venerif'ormis, Gabb, Pal. Calif., i, p. 215 ; (?) C. alticosta, Gabb, (ibid., vol. ii, p. 268). 



174. — Cardita Jaquinoti, d'Orb., is the only species which occurs in Southern India. 



* See Gueranger, Album paleont. de la Sarthe, &.e., 18(57, pi. xvi 

 t See Pal. Calif., ii, p. 243. 



4 A 



