PTEROPODA. 121 



Hyolithes stiletto (Hicks). Tfieca stiletto, H. Hicks, Q. J. G. S. 

 xxvin (1872), pi. vii, f. 18, 19, p. 180. Menevian Beds; 

 Porth-y-rhaw, St Davids. 



H. sulcatus (Salter). Theca sulcata, Salter, Cat. (1873), p. 17. 

 Upper Tremadoc; Llanerch. Presented by D. Homfray, Esq. 



H. trilineatus (Salter). Theca trilineata, Salter, Cat. (1873), 

 p. 18. Base of Upper Tremadoc ; Moel-y-gest. Presented by 

 D. Homfray, Esq. 



Stenotheca cornucopia, Salter, Cat. (1873), p. 8. H. Hicks, 

 Q. J. G. S. xxvin (1872), pi. vii, f. 12, p. 180. Menevian Beds; 

 Porth-y-rhaiu, St Davids. 



Theca, v. Hyolithes. 



SCAPHOPODA. 



Dentalium jeffreysi, J. S. Gardner, Q. J. G. S. xxxiv (1878), 

 pi. iii, f. 30, p. 61. Lower Greensand; Ather field. 



CEPHALOPODA. 



Acanthoteuthis tricarinata, v. Plesioteuthis tricarinata. 



Ammonites acanthonotus, H. G. Seeley, A. M. N. H. ser. 3, xvi 

 (1865), pi. xi, f. 5, p. 234. Malformed individual of A. aiiritns, 

 Sowerby, A. J. Jukes-Browne, Q. J. G. S. xxxm (1877), 

 p. 491. Cambridge Greensand; Cambridge. 



Ammonites (Aegoceras) acuticostatum, T. Wright, Lias Am- 

 monites (1880), pi. xxxv, f. 1 3, 7, p. 371. Lias (zone of A. 

 Jamesoni); Robin Hoods Bay. Leckenby Collection. 



A. alligatus [Bean MS.], J. Leckenby, Q. J. G. S. xv (1859), pi. ii, 

 f. 2 a, b, p. 9. Kellaways Rock; Scarborough Castle. Leckenby 

 Collection. 



A. (Aegoceras) armatus, Sowerby, T. Wright, Lias Ammonites 

 (1880), pi. xxviii, f. 14, p. 340. Lower Lias; Robin Hood's 

 Bay. Leckenby Collection. 



A. (Aegoceras) belcheri, Simpson, T. Wright, Lias Ammonites 



