Environs of Nice, and the Coast thence to Vintimiglia. 177 



2 ^. Shell-bed behind La Trinite. 

 This bed may be considered the equivalent of that last described. Its most 

 characteristic fossil is a Dentalium : its shells are enumerated by M. Ilisso*, 

 and are nearly the same as those of the preceding stratum, 



3. Grey Marl, Sandstone, and Breccia. 



These beds occur at the Fontaine du Temple, probably of Roman construc- 

 tion. The tunnel there is driven tiirough a pyritous marl. On the rouo-h 

 ground, on the north, is a sandstone (siliceous grains), cemented by calcareous 

 matter, forming itself the cement of a breccia, the angular fragments of which 

 vary from hand-specimens to blocks of some hundred weight : they agree in 

 character with the limestone and dolomite on which they rest. Many of these 

 blocks are perforated by Lithodomi ; the holes vary in size, and are lined with 

 calcareous spar, and often contain pieces of shell : — to some blocks also are 

 attached the lower valves of Spondyli with their fine edges uninjured. The 

 epoch in which these animals were imbedded must have been one of repose. 



The cement contains numerous remains of two or three species of Pecten, 

 one of them gigantic, several inches in length; oysters; and teeth, perhaps, 

 of a saurian ; but the specimen of tooth which I found was too mutilated for 

 accurate determination. The breccia may be traced up the mountain to the 

 north of the Fontaine with its Lithodomi^ 1017 f English feet above the sea. 

 Spondyli are also found at the height of 680 feet. 



This breccia must not be confounded with that of Bausi Raussi; they 

 differ not only in geological position, but in the nature of their fossils. Bausi 

 Raussi is more recent. 



* The following is a sketch of his list : 



" Vaginula, 1 species. — Polystomella, 1. — Robuliiia, 1. — Turbiiuilina, 3. — Bulla, I. — Sca- 

 phander, 3. — Bullina, 2 Pyramldella, 2. — Turritella, 1 1. — Natica, 1. — Nacca, 1 — Eulima, 2. 



— Nerita, 1 -Bolma, 1 Trochus, 2. — Gibbula, 3. — Solanum, 3. — Scalaria, 1 — Cerithium, 4. 



— Buccinum, 10 Purpura, 1. — Cyclope, I. — Eione, 1. — Planaxis, 3. — Doliura, 1. — Cassis, 3. 



— Cassidaria, 1 Cancellaria, 3. — Mnrex, 7 Fusus, 6. — Turbinella, 1 — Pyrula, 1 — Otus, 1. 



— Pleurotoma, 8 Mangelia, 1. — Turbonilla, 2 Rostellaria, 1 — Conus, 4 — Marginella, I. 



— Cypraea, 1. — Mitra, 3 Stomatia, 1 Fissurella, 1 — Patella, 1 — Ostrea, 3. — Anomia, 1. 



—Pecten, 5.— Lima, 3.— Pinna, 1. — Area, 5 Pectunculus, 7.— Nucula, 1. — Lembulus, 2 — 



Cardita, 3.— Cypricardia, 1. — Venericardia, 1. — Tridacna, 1.— Chama, 2. — Cardium, 7 — 



Donax, 1.— Lucina, 1 Loripes, 1. — Taras, 1.— Tellina, 8.— Capsa, 1.— Cyprina, 1 — Cras- 



sina, 2.— Cytherea, 3.— Venus, 8 Arctoe, 1.— Venerupis, 1 — Corbula, 4.— Erycina, 1 — 



Mactra, 2.— Mactrula, 1 Mya, 1.— Pandora, 1.— Teredo, 1.— Teredina, 1 — Balanus, 1 — 



Terebratula, 1.— Dentalium, 7.—OfPolypiJers: Turbinolia, 8.— Fungia, 2." 



t From barometrical observations made in company with M. Verany. 

 VOL. 111. SECOND SERIES. 2 A 



