ELOriDiE. 
21 
Dorsal fin comprising about 12 rays, of which the foremost four are 
undivided, arising at the middle point between the occiput and the 
caudal fin. 
Form. <Sf Loo. Upper Cretaceous : Sendenhorst, Westphalia. 
Not represented in the Collection. 
The following specimens, apparently referable to tho genus 
Osmeroicles, are not specifically determined : — 
P- 6850. Part of opercular and abdominal region of very large 
specimen, with remains of a pelvic fin unusually far 
forwards ; Chalk, Willingdon, Eastbourne. 
Presented by Miss Heinemann, 1893. 
39433. Remarkably olongatod head and opercular apparatus, very 
imperfectly preserved, with some anterior vertebrae ; 
English Chalk. Boivcrbank Coll. 
P. 5679. Opercular, branchiostcgal apparatus, &c. ; Lower Chalk, 
Kent. Harford Coll. 
49752. Scattered remains of head showing gular plate; Chalk, 
Ambcrley, Sussex. Oapron Coll. 
P. 8949. Portion of jaws and opercular apparatus, remarkably 
smooth, with largo gular plate ; Gault, Folkestone. 
Purchased, 1898. 
P. 9005. Imporfect head and trunk of the form bearing the MS. 
name Osmeroides vinarensis (A. Fritsch, Archiv naturw. 
Landesdurchf. Bohmen, vol. v. no. 2, 1883, p. 88) ; 
Senonian (Iserschichten), Vinary, Bohemia. 
Purchased, 1899. 
P. 9188. Fish nearly 0-3 in length, in the counterpart halves of a 
nodule; Upper Cretacoous, Barra do Jardim, Serra do 
Araripc, Province of Ceara, Brawl. Tho head is too 
imperfect to determine the genus, and the squamation is 
moro strongly ornamented by linear markings than usual 
in Osmeroides. Purchased , 1900. 
The following specimens seem to represent a genus related to 
Osmeroides, with wider gape and thinner and larger scales, but are 
too incomplete for precise determination : — 
39432. Imperfect head and abdominal region, about 0-5 in length 
and 0-12 in depth, showing the long, straight maxilla, 
