Mr. E. R. Laiikester on new Mammalia from the Red Cray. 353 



b. The dorsal Jin two-thirds of the entire length of the animal from the 

 nose. Cervical vertebra sometimes anchylosed. Neural canal tri- 

 gonal, broader than high. Ribs 11, 



5. Balexoptera. 

 The second cervical vertebra with a broad, long lateral pro- 

 cess, perforated at the base. The first rib single-headed. The 

 lower jawbone moderate, with a distinct, high, conical coronoid 

 process. Vertebrae 50. Ribs 11. Arm-bones slender. 



Balanoptera rostrata. (The Little Beaked Whale.) 



Hab. Common at the mouths of large rivers. 



The "FinnerAVhales" are mentioned as inhabiting almost all 

 the seas ; and doubtless there are a large number of species that 

 have not yet been brought under the notice of zoologists, or of 

 which there are no remains in any European museum. 



XXXIX. — On New Mammalia from the Red Crag. 

 By E. Ray Lankester. 



[Plate VIII.l 



During a recent visit to Suffolk I had the pleasure of examining 

 a very fine collection of Crag fossils in the possession of W. 

 AVhincopp, Esq., of Woodbridge, perhaps one of the most re- 

 markable and interesting collections ever formed from a single 

 deposit, containing as it docs remains derived from every stratum 

 from the Greensand upwards, and illustrating in a very striking 

 manner the fallacy of hasty generalizations founded upon the 

 more or less extended distribution of genera or species through 

 any given scries of deposits. Though I would by no means wish 

 to impugn the doctrine of strata identified by their organic con- 

 tents, yet I feel confident that too great caution cannot be exer- 

 cised in drawing conclusions from the phenomena of association 

 when contemporaneity is not demonstrable. In the Red Crag 

 we have derivatives and representatives of nine different faunae, 

 to some one of which it becomes necessary to refer any new or 

 undescribed fossil that may be discovered therein. There are — 



(1) Upper Greensand fossils in considerable numbers, portions 

 of Ammonites, Terebratulae, Saurian teeth and bones, &c. 



(2) Chalk fossils, represented by flints containing Sponges and 

 Echinoderms. (3) Fossils from the lowest Eocene beds, the 

 Thanet Sands. (4) Nodules, the so-called " coprolites," and 

 very numerous remains of Fish, Crustr.eea, and (much more 

 rarely) Reptilia and Mammalia, derived from the London Clay. 

 (5) Teeth of Carcharodon heterodon and portions of Edaphodon, 



Ann. i^' Mag. N. Hist. Ser.3. Fo/.xiv. 23 



