T. Davidson — Tertiary Brachiopoda. 465 



those termed rugosa by Sequenza. The lower valve of C. abnormis is 

 exceedingly thick and irregulaV, and attaches itself to submarine 

 objects by a small portion of its shell, while the remaining part is 

 roughly concentrically striated or grooved (Fig. 23 and 26). 

 C. abnormis abounds in the Middle Miocene at Grangia, Termo 

 Toura, Sciolze and Callessione, in the Hill of Turin ; also at a place 

 termed L'Ospitzio di St. Colombano, in the plains of Lombardy, at 

 six miles from Lodi. The upper valve of this Crania is very com- 

 mon, but the attached one is found in much less abundance. 



57. Crania lamellosa (Sequenza), PL XXL, Fig. 28, 29. Sicilian 

 Brachiopoda, pi. viii., fig. 8, 1865. 



When Sig. Sequenza described this species he was in possession of 

 one attached valve only, but since then he has found several speci- 

 mens of the upper or unattached valve, which he will describe and 

 illustrate in his forthcoming new work on the Tertiary Brachiopoda 

 of Southern Italy. C. lamellosa occurs in the Upper Pliocene of 

 San Filippo, near Messina. 



58. Crania turlinata (Poli), Vol. IL, p. 189, PL XXX., 1791. 

 Sequenza, Sicilian Brachiopoda, p. 75, 1865. 



I have never seen any fossil Italian specimen of this species. It 

 is described, but not figured, by Sig. Sequenza, and is stated to 

 occur in the Quaternary deposits of Gravitelli and Trapani, near 

 Messina, and is alive in the Mediterranean. 



I have now completed my brief review of Italian Tertiary Bra- 

 chiopoda, and have, I believe, sufficiently shown how numerous and 

 interesting are the species that occur in that peninsula. It is more 

 than probable that some few of the so-termed species enumerated 

 in our list, when better known, will require to be added to the 

 synonyms of some of the others ; and I hope that before many years 

 v^ have elapsed, that Italian Palaeontologists will have enriched 

 science by the publication of a complete monograph of the Tertiary 

 Brachiopoda of Italy. 



EXPLANATION OF PLATE XXI. 



Figs. 1, 2, Megerlia truncata. (Liime.) 1. Pliocene, near Messina. 2. Middle 

 Miocene, Grangia, near Turin. 



3. Megerlia oblita (Michelotti), Middle Miocene, Hill of Turin, after 



Michelotti. 



4. Megerlia ? orbicularis (Meneg.) MS., Upper Miocene, St, Dalmazio, 



Tuscany, from unpublished drawings by Sig. Meneghini. 4 a, 6, c, en- 

 larged. 



5. Argiope decollata (Chemnitz), Pliocene, near Messina. 5a enlarged. 



6, 7, 8. Argiope d«co/toa ? Eocene. Lower part of M. Bayan's stage F., Val di 

 Scorvanto, near Brendola. Mus. of the School of Mines, Paris. 6a, 

 la, Sot, enlarged. 

 9. Argiope costulata (Sequenza), Middle Miocene, Baldessero, CoU. of Sig. 

 ilovasenda. 9a exterior enlarged. 95. int. of dorsal valve enlarged. 



10. Argiope Neapolitana (Scacchi), Pliocene, Siena. 10a enlarged. 



11. Argiope variolata (Sold), according to Meneghini. Pliocene Siena. 



11a enlarged. 



12. Argiope lunifera (Philippi), cistellula (Wood), Lower Pliocene, Messina, 



after Sequenza. 12a enlarged. 



13. Argiope Icevis (Sequenza), Middle Miocene, Grangia, coll. of Sig. 



Rovasenda. 



