410 



PEOCEEDINGS OP THE GEOLOGICAL SOCIETY. [April 26, 



Names op Gexeea and Species. 



Groups. 



India*. EuROPEf. 



Belemnites semicanaliculatus, Blain , . . . 



Nautilus Danicus, ScJihth 



,, Bouchardianus, D^Orb 



„ Bublsevigatus, D^Orh. 



„ Clementinus, D'Orb 



„ Fleuriausianus, D^Orh 



„ elegaus, D^Orb 



„ pseudo-elegaiis, D^Orb 



„ Neocomiensis, D'Orb. 



Ammonites Ootacodensis, Stol. {A. coIUgatus, 

 „ subtricarinatus, Z>'0r6. [Binkhorst.) 



,, inflatus, Loiv 



„ CaudoUianus, Pictet 



,. Gardent, Baily 



„ Eothomagensis, Defr 



„ navicularis, Mant 



„ Mantelli, Loiv 



„ dispar, If Orb 



„ Guadaloupae, Rom 



,, Orbignyanus, Geinitz 



„ Largilliertianus, D'Orh 



5, subalpinus, IfOrb 



„ peramplus, Mant. . 



,, Beudauti, Brongn 



,, Timotheanus, Major 



„ latidorsatus, Mich 



„ Velledse, Mich 



„ Rouyanus, D'Orb 



Scaphites aequalis, Sow 



„ obliquus, Sow 



Anisoceras armatum, Sow 



Turrilites Bergeri, Brongn 



„ Gaesleyi, Pict. Sf C. .'. , 



„ tuberculatus, Rose 



„ costatus, Lam 



,, Brazoensis, Romer 



Ptychoceras Gaultinum, LicM 



Baculites vagina, Forb '. 



V. 



0. 



A. 



A. 



A. 



A. 



0. 



T. 



0. 



0. 



A. 



T. 



0. 



0. 



A. 



0. 



0. 



0. 



0. 



T. 



0. 



0. 



0. 



T. 



0. 



&T. 



0. 



ifeA. 



«feV. 



0. 



0. 



0. 



0. 



0. 



0. 



0. 



0. 



0. 



ifeO.I 



m. c. 

 up. c. 

 m. c. 



1. c. 



1. c. 



up. c. 



m. c. (up. c.) 



(Af.) 



m. c. a. 1. c. 

 m. c. & c. c. 

 m. c. 



„(Am.) 

 „(Am.) 



From this list we see, that the number of identical species (being 

 in all 38) is nearly one-fourth of the total number of the Cejplialapoda: 



*0.,0 otatoor ; V.,Valudayur ; T., Trichinopoly ; A., Arrialoor ; Am., America; 

 Af., Africa. 



t 1. c, Lower Cretaceous; m. c. Middle Cretaceous (comprising the Gault, 

 Gres-verts, Greensand, part of Aptien, Turonien, Cenomanien, the German 

 Flammenmergel, and Planer, &c.) ; up. c, Upper Cretaceous (Danien, part of 

 S6nonien, strata of Maestricht, Eiigen, &c.). 



