214 CEETACEOUS PELECYPODA 



68-69. — C. fene stratum and granigerum apparently belong to Acantliocardium ; witli tlie first 

 Alth/s C. polonicmn is identical (see Favre Descript. Moll, foss.^ Lemberg; 1869; p. 114), 



70-71. — C. Bechii and semipustitlosum belong to Acanthocardium, 



72. — C, Beleyanum is a Bchizodesma (Mactridje^ vide p. 55). 



73. — C. Margiiarti is an Acanthocardkim, 



74. — C gibhosum does not appear to be different from C. JBechii ; there is no difference to be 

 observed in tbe ribbings and the slightly higher form does not seem to indicate more than an 

 ordinary variation. 



75. — C, Noeggeratliii is a L(2vicardium, and the same is apparently the case with the two next 

 species. 



76-77. — C. Gosaviense and Reussi, 



78. — Protocardium Peiersi, Zittel. 



79.— .a Bredai, Miiller, (Petref. Aach. Kreidef. Supplem., 1859, p. 12, pi. 7, ^g, 16); the 

 form is that of an Acantliocardium, but the sm^face, if natural as described, would indicate a 

 LcBvicardium, 



80-81. — C Benedeni and pectiniformej Miiller, are mentioned by Bosquet in extract from 

 Staring^s Bodem v. Nederland, pt. ii, (Foss. fauna and flora v. Limburg) ; I am not acquainted 

 with these species. 



Coquand (Mon. fitage Aptien de FEspagne, 1865, p. 117, &c., describes the following 

 seven new species : — 



82-84. — C. Janus, comes, and miles are Protocardia, 



85-86. — C. Euryalus and hidorsat%im are either not well preserved forms of Acantliocardium , or 

 they belong to Lcevicardium. 



87. — C, Ampkitritis is an insufficient cast, which may belong to a Lcevicardimn, but has more 

 the form of a CucuUcea. 



88. — C. amcenum is to all appearance a Cerastoderma, 



89. — C. Iceve, Gueranger, (Album paleont. de la Sarthe, 1867, pi. xx, figs. 4 and 6,) appears 

 to be a Lmvicardium, 



From Eichwald (Leth. ross., livr. xi, 1867, p. 680, &c.,) the following species have to be 

 referred to, but the formations to which they belong do not appear to be satisfactorily determined. 



90. — C, horeale is apparently a Cerastoderma, or the sub-genus Pectunculus, 



9l-94i,--^G. aviis, armemciim, aralense, smd semigranulatum are probably Acanthocardia ; of the 

 two last named the formation is uncertain. 



95-96. — C. petilum and verveceu,m are described by Loriol in Mat. p. L Pal. Suisse, 4"^® ser., 

 1868, pp. ^6 and 28, from the Valangien beds ; the first belongs to Protocardium, i\\Q ^QGondihsi^ 

 more the form of a Cicatrea (a sub-genus of Cyprina), than of any of the true cardtiNjE, 



97-99. — C. crehri-ecJiinatum, Syriacum, and Herma7te7ise are described by Conrad from Palgestine; 

 they are based upon insufficient casts, and Fraas believes that they only indicate two species 

 (vide Wiirt. naturw. Jahreshefte, xxiii, 1867, p. 235, &c.). 



100-101. — C. helium and ovulum are noticed also by Conrad in Lynches expedition to 

 Palsestine. 



102-114.-— C Pauli, Didrugei, auressense, algirum, Platonis, regular e, sulciferum, triangidare, 

 Besvauxi, Vatto7ii, Mer^neti, Saportce, punicum, 2iie described by Coquand from the Province Con- 

 stantino (Geol. and Paleont. Prov. Const., 1862, p. 204, &c.), but as the species are chiefly based 

 upon cast specimens they are not of much value in point of comparison with other fossils ; the 

 genera Acantliocardium, LcBvicardium, and Protocardium are represented among them, 



115. — C, denticidqtum from Sguth Africa is a typical Acantliocardium, 



