Page:Quarterly Journal of the Geological Society of London, vol. 27.djvu/751

 of forms, each representing a distinct phase in the gradual development 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 millims. in diameter assume a Ceratitic character. [Count M.]

2. On the Nomenclature of the Living and Tertiary Brachiopoda of the Kingdom of Naples. By G. Seguenza.

[Bollettino Malacol. Ital., 1870.]

Professor Seguenza has published a critical revision of the Brachiopoda described by Professor Costa in his 'Fauna del regno di Napoli.' It is founded on the materials collected by Costa, and leads the author to the following results : —

Costa's names. Corrected names.

A. Living species.

1. Terebratula vitrea                  Terebratula vitrea, Born. — minor, Phil.

2. — caput-serpentis                   Terebratulina caput-serpentis, Lin.

3. — truncata                           Megerlia truncata, Lin.

4. Orthis detruncata                    Argiope decollata, Chemn.

5. — pera                               — curvata, Risso.

6. — neapolitana                        — neapolitana, Scacchi.

7. — bifida                             — neapolitana ?

8. — lunifera                           Megerlia monstruosa, Scacchi, jun.

9. — monstruosa                          —  monstruosa, Sc.

10. Platydia anomioides                  Platydia anomioides, Scacchi.

11. Thecidea mediterranea                Thecidea mediterranea, Risso.

12. Crania personata                     Crania turbinata, Poli.

B. Tertiary species.

1. Terebratula vitrea

2. — caput-serpentis                    Vide supra.

3. — truncata                           Terebratula ampulla, Brocchi.

4. Terebratula grandis                  —  sp. nov.

5. — biplicata                          —   sinuosa, Brocchi.

— sinuosa, Brocchi.

— minor, Phil.

6. — irregularis                        Waldheimia cranium, Midi.

— septigera, Loven.

Terebratella septigera, Phil.

7. amigdaloides                         Waldheimia cranium, Mull.

8. euthyra                              — cranium, Mull.

9. lucinoides                           Megerlia eusticta, Phil.

10. bipartita                           Rhynchonella bipartita, Brocchi.

11. plicato- dentata                    — bipartita, Brocchi.

12. pauperata                           — pauperata, Costa.

13. Orthis plicifera                   Argiope decollata, Chemn.

14. — detruncata Vide supra. 15. Crania personata

[Count M.]