. Catalogue of casts of fossils, from the principal museums of Europe and America, with short descriptions and illustrations. Fossils. 88 VERTEBRATA. No. 331. Thanmas alifer, Miinst. Skeleton, on slab. This Placoid lias tlie essential characters of the Squa- tina, save certain modifications of the tail fins. This skeleton was found at the same locality as the preceding, and is in the Museum of the University of Munich. Size, 21 x 9. Price, $ No. 332. Thanmas specioSUS, Meyer. Skeleton, on slab. This species is also called by Meyer, Squatina speciosa. From the same locality and Museum as t
. Catalogue of casts of fossils, from the principal museums of Europe and America, with short descriptions and illustrations. Fossils. 88 VERTEBRATA. No. 331. Thanmas alifer, Miinst. Skeleton, on slab. This Placoid lias tlie essential characters of the Squa- tina, save certain modifications of the tail fins. This skeleton was found at the same locality as the preceding, and is in the Museum of the University of Munich. Size, 21 x 9. Price, $ No. 332. Thanmas specioSUS, Meyer. Skeleton, on slab. This species is also called by Meyer, Squatina speciosa. From the same locality and Museum as the preceding. Size, 8x6. Price, $ No. 333. Carcharias. Two Teeth. These teeth of a fossil Shark were found in the Chalk of , England, and belong to the Ward Museum in the University of Roches- ter. Price of the pair, $ No. 334. Squala ? Vertebrae. These segments of the spinal column of a Shark were found in the Chalk of Kent, England, and are now in the British Museum. Price, $ No. 335. CochliodllS COIltortuS, Agass. Palatal Teeth. In this cestraciont Placoid, the large crushing dental plates appear to be welded into a single mass, and are admirably adapted to crack and bruise the shells of Mollusks and Crustaceans. This specimen was found in the Carboniferous limestone at Bristol, England, and belongs to the Brit- ish Museum. Price, $ No. 336. Acrodus nobilis, Agass. Palatal Teeth. The teeth of this Placoid (allied to the Port Jackson Shark), from the finely striated character and dark color of the grinding surface, are called by quarrymen " fossil leeches" ; and even the savans of a century ago regarded them as petrified worms. This specimen is from the Lias of Lyme- Regis, England, and is now in the British Museum. Price, $ Acrodus Anningise, Agass. Lower Jaw. This remarkably fine specimen exhibits an almost com- plete series of teeth, re- taining the position they occupied during life. There are eight transverse rows on each side, wit
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectfossils, bookyear1866
