OF SOUTHEEN INDIA. 327 



Nilss.^ nana, Eom.^ (1841). This last species is very unsatisfactorily characterized; it may prove 

 to be identical with either Leda Foersteri or Hagenovi of Miiller. It was originally described 

 from a little cast from the cretaceous beds at Aachen^ but neither Miiller nor Bosquet allude to it 

 in their publications subsequent to those of Romer. 



29. — N. tnmcata, Nilss. (Favre^ Desc. M. foss. de Lemberg, 1869, p. 120). This closely 

 resembles striattdaj Rom._, (see also Reuss in Bohm. Kreid., pt. ii, p. 5). 



30. — K denudata, Beuss f=N. ovata, Nilss., Pet. Suec, 1827, p. 16, non eadem Mantell, 1822) . 

 This species is quoted by Bosquet from the Maastricht beds under Nils so n^s name; it is quite 

 different from MantelFs species. Reuss designated it with a special name, but subsequently 

 (Bohm. Kreide., part ii, p. 6,) identified it by mistake with Sowerby's impressa. 



31. — N. pulvillus, MiilL, Mon. Pet. Aach. Kreid. Supp., 1859, p. 11. This species also very 

 closely resembles striatula of Romer. 



32-35. — N, concentrica, Fisch., intersiriata, Eichw., macrodon, Eichw., dilata, Eichw., are 

 described (in Leth. Geog., 1867, xme liv., p. 585 et seq.) from the cretaceous rocks of Russia. 

 Eichwald mentions besides impressa, ^ ow., producta, Nilss., (Leda) pectinata, Sow., ovata, Mant., 

 and Renauxiana, d^Orb., the last of which he identifies with Trautschold^s N. Oppeli. 



36.— One small species is figured by Guer anger (in his Album pal. de la Sarthe, 1867, pi xx, 

 fig. 16,) under the name of impressa of Sowerby, but it is unquestionably distinct from this. It is 

 either a small form of antiquata, Sow., or a new species; it also exhibits marked relations to our 

 N. crassicula from Southern India. 



37. — N, Deivalquei, Briart et Cornet, (Mem. Cour. Acad. Belgique, xxxiv, Fossiles de la 

 Meule de Bracquegnies, p. 62,) belongs to the sub-genus Acila, 



38-40. — N. Maitrita7iica , cretacea, and Desvauxi are described by Coquand from Algiers. (Prov. 

 Const., p. 211). 



41-42. — N. incerta and Alhertina of d^Orbigny are from South America. 



43-55. — K cancellata, M. and Hayd., hellastriata , Sh., ctmeiformis , Con., disforta, Gabb 

 ? mqidlateralis, M. and lA.2ij^.,IIaydeni, Sh., ohsolete-striata, M. and 1^., percrassa, Qow., percEqualis, 

 Con., planimarginata, M. and Hayd., serrata, Sh., suhplana, M. and H., Traskana, Meek, are 

 recorded in Meek's Check-list, (Smiths. Misc. Coll., No. 177, p. 8,) from North America. 



56. — N. Conradi, Meek, in Conrad^s Check-list of eocene fossils (Smiths. Misc. Coll., No. 200, 

 p. 4). 



57-58. — iV. [Acila] truncata, Gabb, (Pal. Calif., I, 198, and II, 197,) non = tnmcata, Nilss., 

 et non N. truncata. Brown f ^Nttculana glacialis, Gray ex Leach), and N. solitaria Gabb 

 (P. Calif., II, p. 197,) are described from the Californian cretaceous deposits. 



59-65, — A. perovata, suhnucronata, parallela, syriaca, myiformis, perohliqua, and ahrupta are de- 

 scribed by Conrad in Off. Rep. of Lynches Exped. to Palsestine; the last is considered by Eraas to 

 be identical with d''Orbigny^s Renauxiana = impressa, Sow., (vide Wiirt. Nat. Jahresh. xxiii 

 1867, p. 236). Eraas also mentions N, Cornueliana, d''Orb., which Pictet and Campiche 

 consider to be a variety oi planata, Desh. 



66-67. — Nucula maxima ^udi triquetra are described by Schafhseutl from cretaceous beds of 

 Bavaria (Siid-Bayerns Leth. Geog., 1863, p. 159). Of the first the description and figure are so 

 insufficient that no opinion can be formed about the fossil ; the second appears very closely allied and 

 probably identical with ZittePs Stachei. Schafhseutl on p. 374 of the same work gives again a 

 N. triqnetra, Goldf., from beds with Inoceramus mytiloides. Goldfuss describes a triquetra 

 Miinst., which name is substituted in the ^'' errata^'' for N. trigona noted in the text, but this species 

 is said to be from the Lias and L. Oolite, and is certainly quite different from Schafbgeutrs shell. 



68-72. — A. Tamulica, indefinita, sp. ind., crassicula, and Udorsata occur in the South Indian 

 cretaceous rocks. 



* Non N. nana, Hinds, 1843, a recent, but doubtful species. 



di L 



