124 CEETACEOUS PELECYPODA 



A, hmqualis (TeLinaqualis, Sow.;, noa id, Hanley),^. suhdeciissata, Rom., sp.^ A, costulatcij Goldf.^ 

 sp., (TellinaJ, A, concentrka, Reuss^ 1843 (non «V/. Gould, 18 ??); and perhaj^s also ^. ^«;?2^,?/o5^^ 

 Eeuss, sp. (Solen), are all species of Linear ia, but I expect that several species will be found 

 identical among themselves, such as those described by Reuss and Romer from Germany with 

 those of d'Orbigny from France. 



38-39. — Ar. hiradiata and fenestrata, Zittel, (Denksch. Akad., Wien, 1864, xxiv, pt. ii, 

 pp. 118 — 119,) are also Linearice ; the same author redescribes Ar, semiradiata, Math., from 

 the Gosau. 



40. — Linearia fArcopagiaJ midtilineata, Coq. (Mon. etage Aptien, 1865, p. 98,) has the general 

 form of L. circinalisj but is sard to have the left valve more convex than the right one. 



41-42.— ^r. reticulata and Ar, cremlata, Gueranger, (Album paleont. de la Meuse, 18G7, 

 pi. XV, figs. 13 and 16,) are Linearim, The author also figures Lin, semiradiata, Math, sp., 

 under the name Arc. radiata, d^Orb. 



43-44. — Tell, parallela and Refanensisj Coquand, from Algeria are, if they belong to the 

 Tellinidas, species of Moera. 



45-53.— Meek (Check list of N. American cretaceous fossils, Smiths. Misc. Coll., No. 177, 

 1864, p. 14,) quotes the following : Tell. ? Cheyenyiends, T. LJufalensis, cequilateralis, nitidula, 

 Ripleyana, scitula, ? 8ul elliptic a, Meek and Hayd., [non I'. 5z^5^//^>i;^(?«, Sow., apud Reeve], 

 (Tellinimera) chorea, (Tellinimera) limatida. 



54-57. — The same author also quotes Arc. texana, Romer, which more likely belongs to 

 Cyprirneria ; further Linearia 7netastriata, Lin, ? cancellato-sculpta, and L. ? irradians ; the last two 

 and especially the last mentioned will probably be shown to belong to the tapesin^. 



58-72. — Gabb describes in Palseont. of California, vol. i, pp. 154, &c., and vol. ii, pp. 182 and 

 183, Tell, long a, Remondii, Hoffmanniana, monilifera, ooides, Mathewsonii, decurtata, ? quadrata, 

 Aslihurneriij Whitneyii, {? Sanguinolaria) parilis, Hornii, Californica ; Tell, cequalis and ? undulifera. 

 All these represent several sub-genera of Tellinaj but especially Tellinella, Homalina, Feronaoderma, 

 possibly also Fliylloda (T. monilifera) and Pal(Xomoera (T. ooides). 



Tell. Bogotina, d^Orb., (Pal. Am. meridionale, pi. xviii, figs. 16-17,) I have already 

 mentioned has more the character of a Corimya. 



73-74. — T. Lar^illierti sind Arc. Faldiviana , d^Ovh., (Voy. Astrol. Paleont., pi. v, figs. 5-8). 

 The former appears to be a Tellinella, the other has no radiating striae, and is, therefore, more pro- 

 bably a Tellinides or Ilomalina, than a Linearia, with which it also agrees in form. 



To this number probably Tell, alharia, arctata, bitruncata, emacerata, obruta, Oregonensis, and 

 suhnasuta from Mr. Conrad''s lower eocene rocks have to be added (see Conrad^s Check list, &c. ; 

 Smiths. Misc. Coll., No. 200, 1866, pp. 7-8). 



"t^ capsinje, 



75. — Capsa texana, Conrad (Emory's report, p. 164). 



76-77. — Asaphis undulata and multicostata, Gabb, (Pal. Calif., vol. i, p. 154, and vol. ii, 

 p. 154, &c.) ; both have very much the form oi Linearice, especially the last one ; of the first 

 Gabb figures the hinge without lateral teeth. 



Capsa gig antea, Miiller (Monog. der Pet. der Aach. Kreidef. Supplem., 1859, p. 15,) appears 

 to be a Frotocardia, 



78-88. — The following species occur in South India : Tell. (Tellinella) petrosa, T. (Tellinella) 

 Arcotensis, T. (? Feronceoderma) scitulina ; T. (Fer.) primula ; T. (Arcopagia) mendosa, T. (Arcopagia) 

 discites ; T. (Tellinides) adpressa, T. (Falceomrera) inconspicua, T. (? Homalina) undata, T (Linearia) 

 semiscidpta and T. (L.) sculptilis. The species are almost in an equal number distributed over the 

 three geological groups of the cretaceous deposits. Tell. Fondiclierriensis, Porb., and two other 

 similar species will be described in the sub-fiimily tapesinjE, 



