OP SOUTHERN INDIA. 213 



4-8. — C. stii-hillanmn, peregrlnnm, impressum, Jaccardi, and Germani ; the first and last appear 

 to be referable to Lavicardium, the other three are Protocardia. 



9-10. — C. Gilliero?u and FaWe?we are based upon cast specimens which do not show any trace 

 of radiating striae or ribs ; their fornij however, better agrees with Lavicardium than with Serripe-s. 



11. — G. imbricatarium has the form of a Protocardium, but apparently no radiating striae on the 

 posterior declivity, though this is distinctly separated from the rest of the shell by an interior 

 sulcus. 



12. — C. inornatum may belong to Serripes, but if no lateral teeth exist d'Orbigny's sub- 

 sequent determination as Uiiicardium would appear to be correct. I will mention the species a^aiu 

 ill the family LnciNW.E. 



13. — C. sphteroideiim is apparently a Lavicardium, or like the next. 

 11;. — C. Forbesi, a Protocardium. 

 15. — C. Ibbetsoni is a Lavicardium. 

 16. — C. Bellegardense, a Protocardium. 



17. — C. Benstedi. The original specimens should be examined ; Forbes does not 'Wve a eliar- 

 acteristic of the species, but merely alludes to its small size and longitudinal (radiating) ribbiu^'-. 

 From this the species would appear to be an Acanthocardium. 

 18. — C. Dupiuianum is a Serripes. 



19-21. — C. Constanta, RauUnianum, alpinum are species of AcantJiocardium, 

 22-34. — C. hillannm, Marticense, Gueraugeri h^ong to Protocardium. 

 25. — C, MicheUni may be a Lavicardium. 



26-33. — C. protjoscideum, CaroUnum, Gentiannm, iiiaquicosiatum, Vendinense, Cenomanense, hi/peri- 

 cnm, canalictilattcm are species of Acantliocardium. 



34-37. — C. Mailleanum, sub-ventricosum, Pelagi, concentricum l^elong to Lccricardinm. 

 38. — C. Pequienianum is to all appearance identical with Protocardium kiUanum, as stated by 

 Zittel, and others. 



39-41. — C. product urn, intercostatum, hispinosum .are Acanthocardia . 

 42. — C. Cordierianuni is a Protocardium. 



43-47. — C. sub-gutti/erum, Corbierense, atacense, and perhaps also Toiicasianum and Pan/a^i are 

 AcaHthocardia. 



48. — C. coniaeum is a Cerastoderma. 

 49. — C. BocJiebruni is based upon an insufficient cast. 

 50. — C. bimarginatum is an Acanthocardium. 



51. — C RauUni may be a Lavicardium, but the description is not satisfactory. 

 52. — C. insculptum ; the figure of this species looks more like tliat of a Linearia (TKLUNiD.t:) 

 than of any of the CARDIIN.E. 



53. — C. radiatum seems to be a Cerasfoderma. 



54-57. — C. Villeiieuvianum, Itierianum, and apparently also C. pisolit/iicum -mmX Uuteiiipltaninii 

 are Acanthocardia. 



58. — C. corrugatvm is a Protocardium. 

 59-60. — C. Olisiponense and tubuliferum are Acanthocardia. 



61-62. — C. semipapillatum and litieolatum ; the first is insufficiently known, tjie second may be 

 an Acanthocardium (see Favre Descript. Moll, foss., Lemberg, 1869, p. 113). 

 63-64. — C. alutaceum and pnstulosum are Acanthocardia. 

 65. — C. Ottoi is a Ccrastoderma. 



66. — C. intermedium ( ? productum) is an Acanthocardium, 

 67. — C, propinquum is a Ccrastoderma, 



3 r 



