32 
8ELACH1I. 
Acanihias serratus, J. Probst, tom. cit. p. 174, pi. iii. fig. 33. 
Molasse ; Schemmerberg and Althcim, Wurtembcrg. 
A tooth of the living Acanthias vulgaris, Risso, is recorded from 
the We)'bourii Crag of East llunton, Norfolk, by E. T. Newton, 
Vertebrata of the Forest-bed Series (Mem. Gcol. Surv. 1882), p. 131, 
pi. xix. fig. 8. 
Genus CETUTROPHORUS, Miiller & Henle. 
[Syst. Beschreib. Plagiostom. 1841, p. 88.] 
Dorsal fin-spines present. Lower teeth as in Acanthias ; upper 
teeth erect, triangular, or narrow lanceolate, with a single cusp. 
Centrophorus primsevus (Pictet). 
1860. Spina.T primeevus, F. J. Pictet, Poiss. Foss. Mt. Liban, p. 63, pi. x. 
figs. 1-3. 
1884. Cevtrophorus, C. Ilasso, Palajontogi-aphica, vol. xxxi. p. 3, pi. i. 
fig. 1. 
1887. Spina.v prinmvm, ,T. W. Davis, Trans. Roy. Dublin Soc. [2] 
vol. iii. p. 477, pi. xvi. fig. 2. 
Tppe. Portions of fishes ; Geneva Museum. 
Snout gently rounded, the length of the prseoral portion being 
about equal to the maximum width of the head. Dorsal spines 
projecting beyond the skin. The length of the base of the first 
dorsal (without the spine) equals about one third the distance 
between the two fins ; distal extremity of pelvic fins in advance of 
a point opposite the second dorsal. Shagreen-scales with three or 
four keels. 
The teeth of the upper jaw being still unknown, the reference of 
this species to Oentrophorus cannot be regarded as quite certain ; it 
is not referable to Spina.v, but may bo an Acanthias. 
Form. Loc. Upper Cretaceous (Turonian) : Sahel Alma, Mount 
Lebanon, Syria. 
P. 4779. Specimen figured by J. W. Davis, he. cit. 
Purchased, 1884. 
49468-9. Less complete head and portion of the trunk, showing 
impressions of the two dorsal fin-spines ; also a smaller 
specimen exhibiting the lower teeth, a pectoral fin, and 
the two imperfect dorsal fin-spinos. Purchased, 1878. 
P. 4858. Crushed bent specimen, displaying well the lower aspect 
of the head and pectoral fins. Purchased, 1885. 
