OF SOUTHERN INDIA. 75 



Eomomya) j — F/i. smicta-crucis, P. and Camp., (OWL. ?J ; — Ph. valangiensis, P. and C. ; FJi. icmiensis, 

 and Ph. Cristoliana, Math., probably belong io Poromi/a j — Ph. Pareti, Math., Ph. sinuosajM2ii\i., 

 and Ph. ohliqua, (Panopcea apud d^Orb.), have very much the appearance of Pleiiromya, and the 

 last two species are likely to be the same. 



The cretaceous species described by Agassiz as Mijopsls ( = Plenromya) will be noticed under 

 Pano'ima. I may only remark that these aj)pear to be true cretaceous Pleuromyae, distinct from 

 Homo my a or Pa^iopaa. 



91-102. — Goniomya catidata, Ag., [Ph. Agassizii, d'Orb.), Gon. Villersensis, P. and C, Gon. 

 Rouyana, d'Orb., are noted as PholadomycB by Pictet and Campiche. 



103-106. — Ph. MarUni, Forb., (multic.) ;—Ph. pedernalis, Kom., [OVUL.) ; — Ph. Comueliana, 

 d^'Orb.j (very much like Ph. ceqinvalvis, Groldf., sp., MULTIC.) ; — Goniomya Archiaci, Pict. and 

 Kenev., {Ph. thracioides, Pictet and Camp.). 



107-111. — Ph. Genevensis, Pict. and Eoux., (triang.) ; — Ph. Fahrina, d'Orb., and Ph. Tri- 

 holeti, Pict. and Camp, (multic.) j — Goniomya (Pholad.), Raulmiana, d'Orb. ; Ph. Dutempleana, 

 d'Orb., (cARDiss. ?). 



112-116. — Ph. Ligeriensisj d^Orb., (probably a Poromya) ; — Ph. cordiformis, Desh., (not Ph. 

 cardiformis, as stated by Pictet and Campiche), is likely a Plenromya -, — Ph. suhdinensis, d'Orb., 

 (multic.) ; — Goniom. Mailleana [Pholad. id., d'Orb.) ; Ph. (Pachymya =.? Myacites) gigas, Sow. 



117-128. — Ph. Archiaciana, d'Orb., (multic.) ; — Goniomya, (Pholad.) Noueliana, d.^Orb. ; Ph, 

 Esmarki, Nills., sp., (Zeitsch. Deutsh. Geol., G-eselL, xv, p. 145), CARDiss. ; — Ph. nodulifera, 

 Miinst.,-^(==P/^. alhina, Rom.), Phol. eliptica, Miinst. ( — ? Ph. Boyana, d'Orb., (multig.Jj — 

 Ph.decussata,M.2Lni., sp. (see Zeitsch. Deutsh. Geol. Gesellsch., 1863, xv, p. 143), Ph. Marrotiana, 

 d'Orh., Ph. Moulinsii, d'Orb., (CARDlss.) j — Ph. Tostrata,-\ Math., (multic); — Ph. umbonata, 

 Eom., and Ph. Kasimiri, (Kazimiri), Pusch., (cARDiss.) ;—-Ph. cequivalvis, Goldf., (multic, see 

 p. 79); — Goniomya designata, Miinst. = G. Geinitzii, d^Orb. 



Schafhseutl names a Phol. lignitica, occurring in lignitic sandstone near Miesbach, which is 

 probably tertiary, though he does not say so. The same author quotes Ph. Esmarki from the Gosau 

 beds on the Kressenberg, (Siid-Bayern's Leth. Geog., p. 176). Giimbel (Bayer. Alpen.) quotes the 

 same from Siegsdorf. 



129-134 — Ph. hispanica,P. rec%brrens,d,\APh. CollomU (multic); — Ph. sphmroidalis ; Panopma 

 (on the plates Pholadomya) fallax and aptienns, (both of which are probably PoromycB, and the last 

 may also be a Plenromya), see Coquand, Etage Aptien de PEspagne, 1865, p. 92, &c. The same 

 author quotes Ph. Cornueliana, Ph. pedernalis, and Ph. gigantea. Sow., which last name has pre- 

 ference before that of Miinster's Ph. elongata. 



135-137. — Ph. ohliquissima, cordata, and Stewarti are described from Ireland by Tate (Quar. 

 Jour. Geol. Soc, Lond., xxi, 1865, p. 40, &c.). 



138. — Ph. granulosa, Zittel (Denksch. Akad., Wien, xxiv, pt. ii, p. 116) (multic). 



139-152.— Eichwald (Leth. Eoss., livr. xi, 1867, p. 748, &c.), quotes the following species 



from cretaceous rocks of Russia, but his Neocomien is in part probably a Jurassic deposit : Ph. scala 



(=z Ph. decorata apud Rouillier), Ph. inceqiialis (= Ph. literata, apud Trautschold),P/^. inmquicosta, 



are MULTIC. ; — Ph. Uralensis, d'Orb., resembles an inflated Thracia ;--Ph. monticola, (oARDlss.); — 



* Pictet and Campicke consider Ph.nodifera and elliptica of Miinster as identical, which is, I think, a mistake. 

 "With the first Romer's albina, with the second d'Orbigny's Boyana, have probably to be identified ; the form of 

 both agree, but the direction of the ribs is somewhat different ; I do not think that the granulations on the ribs are 

 of any particular importance. 



t Zittel (Denksch. Akad., Wien, 1865, xxiv, pt. ii, p. 115,) identifies with this species one from the Gosau, and 

 besides describes a variety which he calls Ph. rostrata, var. Roy ana, d'Orb. If that peculiar form is to be considered 

 as a special variety, the name Ph. rost. y^x. prcBgnans, Zittel, ought to be applied to it, for its form is by no means 

 that of d'Orbigny's Royana, (see also Eichwald in Leth. Ross., livr. xi, p. 762). 



