58 
ACTIN' OPTER Y GTI. 
Semionotus capensis, A. S. Woodward. 
1888. Semionotus capensis, A. S. Woodward, Quart. Jo urn. Geol. Soc. 
yoI. xliv. p. 138, pi. vi. figs. 1-5. 
Type. Nearly complete fishes; British Museum. 
A species attaining .a length of about 0*18. Trunk regularly 
fusiform, with comparatively slender caudal pedicle. Length of 
head with opercular apparatus about equal to the maximum depth 
of the trunk, and contained four times in the total length of the fish ; 
external bones smooth. Pelvic fins arising nearly midway between 
the pectorals and the anal; dorsal fin arising about the middle of 
the back, behind the origin of the pelvic pair, and comprising 12 
rays; anal fin arising opposite the hinder extremity of the dorsal, 
with about 8 rays, the longest when adpressed reaching to the 
base of the caudal. Scales smooth, none serrated, and those of the 
flank scarcely deeper than broad. 
Form. Sf Log. Upper Karoo Formation (Stormberg Beds): Ficks- 
burg, Orange Free State, South Africa. 
P. 4089. The type specimen, being a slab partly in counterpart, 
with remains of four fishes. 
Presented by the Orange Free State National Museum , 
through Hugh Exton , Esq., M.D., 1883. 
P. 6861. Slab with remains of six fishes, partly in counterpart. 
Impressions of the styliform teeth are well shown in 
one specimen. Presented by H. Savory, Esq., 1893. 
P. 6943. Three specimens, one head displaying the styliform teeth 
in the premaxilla and some of the circumorbital bones in 
impression. Presented by David Draper, Esq., 1893. 
Semionotus fultus (Agassiz). 
1833-36. Palceoniscus fultus, L. Agassiz, Poiss. Foss. vol. ii. pt. i. 
pp. 4, 43, pi. viii. figs. 4, 5. 
1841. Palceoniscus fultus, W. C. Bedfield, Amer. Journ. Sci. vol. xli. 
p. 25. 
1841. Palceoniscus macropterus, W. C. Bedfield, ibid. p. 25. 
1847. Ischypterus fultus , Sir P. Egertou, Quart. Journ. Geol. Soc. 
vol. iii. p. 277. 
1850. Ischypterus f ultus, Sir P. Egerton, ibid. vol. vi. pp. 8, 10. 
1877. Ischypterus fultus, B. H. Traquair, ibid. vol. xxxiii. p. 559. 
1888. Ischypterus fultus, J. S. Newberry, Foss. Fishes Trias. N. Jersey 
and Connecticut (Mon. U.S. Geol. Surv. no. xiv.), p. 34, pi. vi. 
fig. 2, pi. vii. fig. 1. 
1888. Ischypterus macropterus, J. S. Newberry, ibid. p. 41, pi. xii. 
fig. 1. 
