512 
ACTIXOPIERYGII. 
Leptolepis voithi, Agassiz. 
(P) 1839. Ascalabos voithii, G. von Munster, Beitr. Petrefakt. pt. i. 
p. 112, pi. xii. fig. 5. 
1844. Leptolepis voithii, L. Agassiz, Poiss. Foss. vol. ii. pt. ii. pp. 131, 
295, pi. lxi. a. figs. 2-4. 
1844. Leptolepis contractus, L. Agassiz, ibid. pt. ii. pp. 134, 294. 
1844. Leptolepis polyspondylus, L. Agassiz, ibid. p. 133, pi. lxi. figs. 7, 8. 
[Immature fish.] 
1844. Leptolepis paucispondylus , L. Agassiz, ibid. p. 134 (name only). 
(P) 1848. Tharsis radiatus , C. G. Giebel, Fauna d. Vorw., Fische, 
p. 146. [Nearly complete fisli; Halle Museum.] 
1863. Leptolepis voithii, A. Wagner, Abb. k. bay. Akad. Wiss., math.- 
pbys. Cl. vol. ix. pp. 741, 744. 
Type. Nearly complete fishes; Palaeontological Museum, Munich. 
A small species, attaining a length of about 0*12. Length of 
head with opercular apparatus considerably exceeding the maximum 
depth of the trunk, and equalling about one-quarter of the total 
length of the fish; caudal pedicle comparatively robust, its depth 
exceeding one-third the maximum depth of the abdominal region. 
Vertebrae about 35 to 40 in number, the centra in the caudal region 
longer than deep and all comparatively robust, being strengthened 
by the addition of small longitudinal ridges of secondary bone ; 
neural and haemal spines in the anterior part of the caudal region 
gently arcuated. Pelvic fins arising much nearer to the anal than 
to the pectorals; dorsal with about 14 rays, arising opposite the 
pelvic pair and extending almost as far as a point opposite the anal, 
which comprises about 10 rays and arises much nearer to the pelvic 
fins than to the caudal. 
Form. Sf Lor. Lower Kimmeridgian (Lithographic Stone) : Ba¬ 
varia. 
37059, 37062, 37064, 37077, 37080, 37900, 37908-10, 37916-18, 
37921. Thirteen specimens, three being in counterpart, 
variously preserved and exhibiting all the principal cha¬ 
racters of the species ; Solenhofen. Hdberlein Coll. 
P. 931, P. 3672. Fine specimen 0*085 in length, in counterpart; 
Solenhofen. Egerton Enniskillen Colls. 
P. 3673. Two large contorted specimens, probably of this species ; 
Kelheim. Enniskillen Coll. 
P. 3673 a. Typical well-preserved fish 0*075 in length; Kelheim. 
Enniskillen Coll. 
History unknown. 
46315. Similar specimen ; Kelheim. 
