CATOPTEKlDiE. 
7 
Dictyopyge superstes (Egerton). 
1858. Palceoniscus superstes , Sir P. Egerton, Quart. Journ. Geol. Soc. 
yoI. xiv. p. 164, pi. xi. figs. 1-3. 
1887. Dictyopyge superstes , K. A. von Zittel, Handb. Palaeon^. vol. iii. 
p. 203. 
Type. Imperfect trunk ; collection of Bev. P. B. Brodie. 
A small species, attaining a length of about 0'065. Proportions 
uncertain, but probably very similar to those of the type species, 
the caudal pedicle only being relatively longer. The dorsal and 
anal fins arising directly opposite to each other, and apparently 
nearty equal in size. Scales smooth, not serrated. 
Form. Log. Upper Keuper: Warwickshire. 
Pot represented in the Collection. 
Dictyopyge rhenana, Deecke. 
1889. Dictyopyge rhenana , W. Deecke, Palseontogr. vol. xxxv. p. 107, 
pi. vi. fig. 11. 
Type . Imperfect fish ; Basle Museum. 
A species attaining a length of about 0*13. Proportions uncer¬ 
tain, but probably very similar to those of the type species, the fin- 
rays differing in being more delicate. Dorsal fin arising slightly in 
advance of the anal fin. Scales smooth or marked mesially with a 
low longitudinal rib. {Deecke.) 
Form. Sf Loc. Bunter Sandstone: Degerfelden, near Basle, Switzer¬ 
land. 
Pot represented in the Collection. 
Dictyopyge symmetrica, A. S. Woodward. 
1890. Dictyopyge symmetrica, A. S. t Woodward, Mem. Geol. Surv. 
P. S. Wales, Palasont. no. 4, p. 17, pi. iv. figs. 5, 6. 
Type. Pearly complete fish; Geological Survey of Pew South 
Wales, Sydney. 
A small species, attaining a length of about O’OB. Length of 
head with opercular apparatus about equal to the maximum depth 
of the trunk and comprised more than four times in the total length 
of the fish ; depth of caudal pedicle scarcely more than one-third 
that of the abdominal region. Cranial bones externally rugose. 
Pelvic fins arising nearer to the anal fin than to the pectoral arch; 
dorsal fin as deep as long and directly opposed to the anal, which 
is equally elevated and only slightly more extended. Scales orna¬ 
mented with faint oblique ridges or grooves. 
