﻿1 L6 lOimiYonoiiuLiTES. 



The Rhaetic spines assigned to this genus are not improbably 

 referable to the dorsal iins of the fish of which the teeth are known 

 as Hybodus minor K 



Nemacanthus monilifer, Agassiz. 



1837. Ne7)iaccmthus monilifer, L. Agassiz, Poiss. Foss. vol. iii. p. 26, 



pi. vii. figs. 10-15. 

 1837. Nemacanthus Jllifer, L. Agassiz, ibid. p. 26, pi. vii. fig. 9. 



[Bristol Museum.] 

 (?)1844. Nemacanthus monilifer and N. Jilifer, Meyer & Plieninger, 



Beitr. Pal. Wiirttembergs, p. 108, pi. xii. figs. 65, 66. 

 1858. Desmacanthus cloacinus, F. A. Quenstedt, Der Jura, p. 34, pi. ii. 



fig. 13. [Type of Desmacanthus, Tubingen Museum.] 

 1874. Nemacanthus monilifer, K. Martin, Zeitschr. deutsch. geol. Ges. 



vol. xxvi. p. 820. 

 1881. Nemacanthus monilifer, J. W". Davis, Quart. Journ. Geol. Soc. 



vol. xxxvii. p. 418. 

 1881. Nemacanthus filifer, J. W. Davis, ibid. p. 418. 



Type. British Museum. 

 The type species. 



Form. Sf Log. Rhsetic : Gloucestershire, Somersetshire, Devonshire, 

 and Leicestershire ; Wiirtemberg. 



23153 b. Two fragments ; Aust Cliff, near Bristol. Purchased, 1849. 



23812. Five portions of spines ; Aust Cliff. Purchased, 1849. 



24840. Bone-bed with fragments of three spines ; Aust Cliff. 



Purchased, 1850. 



43852. Four fragments ; Aust Cliff. Purchased, 1872. 



44835. Portion of large spine ; Aust Cliff. 



Presented by Benjamin Bright, Esq., 1873. 



46830. Small spine ; Aust Cliff. By transfer, 1875. 



P. 2217. Six portions of spines, two being associated; Aust Cliff. 



Egerton Coll. 



P. 2852. Two fragments ; Aust Cliff. Ennishillen Coll. 



P. 2854. Small spine ; Somersetshire. EnnisTcillen Coll. 



P. 2853. Nearly complete small spine ; Axminster. 



Enniskillen Coll. 



1 A. S. Woodward, Trans. Leicester Lit. & Phil. Soc. n. s. pt. xi. (1889), 

 p. 18. 



