PTEROPODA. 121 
Hyolithes stiletto (Hicks). heca stiletto, H. Hicks, Q. J. G.5. 
XXVIII (1872), pl. vii, f. 18, 19, p. 180. Menevan 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). Zheca 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. xxvi (1872), pl. vu, f. 12, p. 180. Menevian Beds; 
Porth-y-rhaw, St Davids. 
Theca, v. Hyolithes. 
SCAPHOPODA. 
Dentalium jeffreysi, J. S. Gardner, Q. J. G. 8S. xxxiv (1878), 
pl. iii, f. 30, p. 61. Lower Greensand ; Atherfield. 
CEPHALOPODA. 
Acanthoteuthis tricarinata, v. Plesioteuthis tricarinata. 
Ammonites acanthonotus, H. G. Seeley, A. M. N. H. ser. 3, XvI 
(1865), pl. xi, f. 5, p. 234. Malformed individual of A. auritus, 
Sowerby, A. J. Jukes-Browne, Q. J. G. S. xxxim (1877), 
p. 491. Cambridge Greensand ; Cambridge. 
Ammonites (Aegoceras) acuticostatum, T’. Wright, Lias Am- 
monites (1880), pl. xxxv, f. 1—3, 7, p. 371. Laas (zone of A. 
Jameson); Robin Hood's Bay. Leckenby Collection. 
A. alligatus [Bean MS.], J. Leckenby, Q. J. G.S. xv (1859), pl. 1, 
f.2 a,b, p.9. Kellaways Rock; Scarborough Castle. Leckenby 
Collection. 
A. (Aegoceras) armatus, Sowerby, T. Wright, Lias Ammonites 
(1880), pl. xxvii, f. 1—4, p. 340. Lower Lias ; Robin Hood's 
Bay. WLeckenby Collection. 
A. (Aegoceras) belcheri, Simpson, T. Wright, Lias Ammonites 
