SEMIOXOTIDJE. 
99 
P. 6 374. Imperfect head showing cranial roof from within. 
Beckles Coll. 
43419. Left frontal bone. Cunnington Coll. 
P. 1121. Larger left frontal bone. Egerton Coll. 
P. 7414. Smallpair of frontals, with three right circumorbitals. 
Enniskillen Coll. 
21974, 24818. Three parasphenoid bones. Purchased , 1848, 1849. 
P. 1121 a. Parasphenoid. Egerton Coll. 
48371. Light premaxilla, figured in Proc. Zool. Soc. 1893, pi. xlix. 
fig. 3; Middle Purbeck, Durdlestone Bay. Beckles Coll. 
P. 1119. Left premaxilla, with a series of five teeth. Egerton Coll. 
P. 6373. Imperfect right mandibular ramus. Beckles Coll. 
21974 a. Two small right dentary bones. Purchased, 1848. 
36084. Larger left dentary, with a series of nine well-preserved 
teeth. Cunnington Coll. 
40655, 46411. Two left dentaries, each exhibiting ten teeth. 
Purchased, 1867, 4' Cunnington Coll. 
P. 6372. Imperfect small fish probably of this species, exhibiting 
scales with remarkably produced postero-inferior angle. 
Beckles Coll. 
Lepidotus leedsi, sp. nov. 
1880. Lepidotus minor, R. Damon {errore), Geol. Weymouth, ed. 2 
Suppl. pi. xi. fig. 12. 
Type. Portion of skeleton ; British Museum. 
An imperfectly known species of small or moderate size. External 
cranial bones rugose and marked with sparse, fine tuberculations ; 
opercular bones nearly smooth, with few patches of fine tubercula¬ 
tions. Dentary bone robust, but scarcely curved inwards, somewhat 
deepened by the sharp downward curve of its inferior border at the 
symphysis. Teeth mostly oval in form, those on the inner bones 
robust, but elevated on pedicles and the crown sometimes with a 
median apex or tubercle: teeth of dentary bone obtuse and the 
pedicle somewhat tumid immediately below the crown; splenial 
teeth in about three irregular concentric series. Operculum nearly 
twice as deep as its maximum breadth, and not quite twice as broad 
at the lower as at the upper extremity; suboperculum somewhat 
less than one-quarter as deep as the operculum, with very large 
h 2 
