372 
SELACHII. 
*S. 
Odontaspis complanata (Egerton). 
1845. Lanina, complanata , SirP. Egerton, Quart. Journ.Geol. Soc. vol. 1 . 
p. 170, woodcut. 
1845. Lanina sigmoides, Sir P. Egerton, ibid. p. 170, woodcut. 
Type. Detached tooth ; British Museum. 
A species of moderate size, the crowns of the teeth much, com¬ 
pressed, and none exhibiting a pronounced sigmoidal curvature ; 
outer coronal face considerably flattened, inner face smooth, and the 
edges extremely sharp ; a single pair of small lateral denticles. 
Form. Sf Loc. Upper Cretaceous: Madras, India. AY ait aid Beds: 
New Zealand. 
P. 595. Two lateral teethj- ono b e ing the typ e spmrn ^/; Pondicherry, 
Madras. Egerton Coll 
P. 5155. Anterior tooth, and fragment of crown,)of the form named 
L. sigmoides ; Pondicherry. Egerton Coll 
P. 291. Similar dental crown; AVaitaki Series, Takiroa, AA'aitaki, 
New Zealand. 
Transferred from Mas. Practical Geology , 1880. 
Odontaspis incurva (Davis). 
1888. Lanina incurva, J. W. Davis, Trans. Roy. Dublin Soc. [2] vol. iv. 
p. 17, pi. iii. figs. 2-5. 
Type. Detached teeth; Museums of Canterbury and Otago, New 
Zealand. 
Teeth robust, the crown of those placed anteriorly sometimes 
attaining a height of 0‘035, with a more or less marked sigmoidal 
curvature. Outer coronal face prominently convex; inner face 
smooth : cutting-edges obtuse, almost or quite disappearing near the 
base ; a single pair of lateral denticles, very minute. 
Form. Sf Loc. Oamaru and AVaipara Systems, and the AYaireka 
Series: New Zealand. 
P.271. Pour dental crowns; Otatara series, three miles IN’, of 
Kakannui. Transferred from Mus. Practiced Geology , 1880. 
P. 2307 a. Large dental crown, with base of minute lateral denticle; 
Oamaru System, Tokomariri. By exchange, 1876. 
P. 2303 a. Abraded dental crown; Otatara series, Trelissic, Can¬ 
terbury. By exchange, 1876 
