SEGUENZA NEAPOLITAN BRACHIOPODA. 6 



of forms, each re]3reseiiting a distinct phase in the gradual deve- 

 lopment of a fundamental form. 



Wherever the internal lobes could be laid bare, the antisiphonal- 

 lobe was found to terminate in two points, and the termination of 

 the adjacent internal saddle to be one-leafed. The termination of 

 the first lateral saddle is said, by Quenstedt, to be one-leafed in 

 P. tortisulcatum. The embryonal whorls are nearly alike in all the 

 spec'es examined, presenting a close external resemblance, on a 

 very diminutive scale, to certain Goniatites, such as Goniatites 

 tridens, Sandb. The lobes of examples about 2 mUlims. in dia- 

 meter assume a Ceratitic character. [Count M.J 



2. On the jN'omenclatuee of the Living and Teetiarx Brachiopoda 

 of the Kingdom of Naples. By G. Segttenza. 

 [BoUettino Malacol. Ital., 1870.] 

 Professor Seguenza has published a critical revision of the Brachi- 

 opoda described by Professor Costa in his 'Pauna del regno di 

 jS'apoli.' It is founded on the materials collected by Costa, and 

 leads the fiuthor to the following results : — 



Costa's names. Corrected names. 



A. Living species. 



1 rr, u i. 1 -i r Terebratula vitrea, Born. 



1. Terebratula vitrea \ ■ dz.-/ 



[ minor, Fhd. 



2. caput-serpen tis Terebratulina caput-serpentis, Lin . 



3. truncata Megerlia truncata, Lin. 



4. Orthis detruncata Argiope decoUata, Chemn. 



5. pera curvata, Risso. 



6. neapolitana neapolitana, Scacchi. 



7. bifida neapolitana? 



8. lunif era Megerlia monstr uosa, Scacchi, jun. 



9. ■ monstruosa monstruosa, &. 



10. Platydia anomioides Platydia anomioides, Scacchi. 



1 1 . Thecidea mediterranea Thecidea mediterranea, Sisso. 



1 2. Crania personata Crania turbinata, Poli. 



B. Tertiary species. 



1. Terebratula vitrea 1 * 



2. caput-serpentis V Vide supra. 



3. truncata J 



. rr, , , , -■• f Terebratula ampulla, ^rocc/w. 



4. Terebratula grandis \ „„, „,_ ^ 



° y sp. nov. 



5. biplicata sinuosa, Brocchi. 



( sinuosa, Brocchi. 



I minor, Phil. 



6. irregularis \ Waldheimia cranium, Midi. 



I septigera, Loven. 



\ Terebratella septigera, Phil. 



7. amy gdaloides Waldheimia craniiun, Miill. 



8. euthyi'a cranium, Miill. 



9. lucinoides Megerlia eusticta, Phil. 



10. bipartita Rhynchonella bipartita, Brocchi. 



1 1 . plicato- dentata bipartita, Brocchi. 



12. pauperata pauperata, Costa. 



13. Orthis plicifera Argiope decoUata, CJmnn . 



It --.detruncata \ Vide supra. 



15. Crania pei'sonata J -^ 



[Count M.J 



