506 
ACTINOPTERYGIf. 
tively robust. Vertebral centra in the form of thin cylinders, not 
much constricted and none much longer than deep. Pins as in the 
type species. 
Form. Sf Loc. Upper Lias : Wiirtemberg. 
19637-40. Three specimens, one being in counterpart and the largest 
about 0*12 in length ; Boll. In the third specimen the 
head is elongated by crushing and displays several of the 
bones. Purchased , 1845. 
Leptolepis autissiodorensis, Sauvage. 
1892. Leptolepis autissiodorensis , H. E. Sauvage, Bull. Soc. Hist. Nat. 
Autuu, vol. v. p. 393, pi. xvi. fig. 2 (reprinted in Bull. Soc. Sci. 
Yonne, vol. xlvii. 1893, p. 28, pi. i. fig. 2). 
Type. Nearly complete fish. 
A robust species attaining a length of about 0*1. Length of head 
with opercular apparatus about equalling the maximum depth of 
the trunk and contained about four-and-a-half times in the total 
length of the fish ; width of caudal pedicle equalling one-quarter 
the maximum depth of the abdominal region. Vertebrae and fins 
as in the type species. 
Form. Sf Loc. Upper Lias: Yonne, France. 
Not represented in the Collection. 
Leptolepis talbragarensis, A. S. Woodward. 
[Described in forthcoming Mem. Geol. Surv. N. S. Wales, Pakeont. 
no. 9, with drawings on pi. vi. figs. 1-8.] 
Type. Nearly complete fish ; Geol. Survey Museum, Sydney. 
A robust species ordinarily attaining a length not exceeding 0*15. 
Length of head with opercular apparatus less than the maximum 
depth of the trunk, and somewhat less than one-fifth of the total 
length of the fish ; caudal pedicle robust, nearly half as deep as the 
abdominal region. Vertebrae about 45 in number, the centra 
scarcely longer than deep in the anterior part of the caudal region, 
and forming thin, smooth constricted cylinders ; the neural and 
haemal arches in the anterior part of the caudal region gentl} T 
arcuated, not depressed. Pelvic fins arising slightly nearer to the 
anal than to the pectorals; dorsal with about 12 rays, arising in 
advance of the middle point of the back and immediately behind 
the origin of the pelvic fins ; anal fin with about 9 ra) T s, arising 
midway between the pelvic and caudal fins. 
Form. Sf Loc. Upper Hawkesburj’-Wianamatta Series : Talbra- 
gar, New South Wales. 
Not represented in the Collection. 
