298 
SELACniI. 
37161. Elongated tooth ; L. Chalk, Dover, Kent. IMrchaml, 1863. 
P. 5879. Much elongated tooth ; Southeram. 
J’resented hy the Rev. E. A. lUingivorth. 
P. 2148. Similar tooth ; Sussex. Egerton Coll. 
P- 2752. Imperfect similar tooth ; Southeram. Ennislcillen Coll. 
P. 5397. Fragments of throe similar teeth, associated; Lowes. 
Presented hy P, /?. Coomhe, Esq., 1888. 
P. 5398. A comparatively short much rounded tooth, pertainitig 
cither to this species or to A. levis ; referred to the latter 
by the present writer in I’roc. Gool. Assoc, vol. x. p. 290 ; 
Lewes. Presented hy P. E. Coomhe, Esq., 1888. 
The following specimens may pertain either to Acrodus or Ces- 
traeion : — 
22492. Two small teeth with a longitudinal ridgo-fold, and the 
lateral markings semi-reticulate, of the form namced yfcTO- 
dns semirugosus, T. I’lieninger, Wiirtt. Jahresh. vol. iii. 
(1847), p. 227, pi. ii. fig. 17 ; Corallian, Schnaitheim, 
Wurtemberg. Purchased, 1848. 
The following species have also been founded upon detached teeth, 
but there are no examples in the Collection 
Acrodus affinis, A. E. lleuss, Verstcin. biihm. Kreideform. pt. i. 
(1845), p. 1, pi. ii. figs. 3, 4; A. Fritsch, llcpt. u. Fische 
bohm. Kreideform. 1878, p. 15, fig. 37; II. B. Geinitz, 
Pal0contogr. vol. XX. pt. ii. (1875), p. 212. — Pliinorkalk ; 
Bohemia and Saxony. 
Acrodus angustus, C. G. Giobcl, Fauna d. Vorw., Fische (1848), 
p. 327. — Lias ; Quedlinburg. 
Acrodus emmonsi, J. Leidy, Proc. Acad. Nat. Sci. Philad. 1872, 
p. 163. “yicrodits, Emmons, N. Carolina Gcol. Surv. 
185 f, p. 244, fig. 97. — Miocene ; North Carolina ” (?). 
Acrodus jlemingiunus, L. G. do Koninck, Quart. Journ. Geol. Soc. 
vol. xix. (1863), p. 17, pi. viii. fig. 5. — Productus Lime- 
stone ; Salt Range, Punjab, India. 
Acrodus humUis, J. Leidy, Proc. Acad. Nat. Sci. Philad. 1872, 
p. 163; Ext. Vert. Fauna West. Torrit. (U.S. Geol. Surv. 
Territ. vol. i. 1873), p. 301, pi. xxxvii. fig. 5. — Cre- 
taceous ; New Jersey, 
