APHREDODERIDyE.-CTTTID^. 
417 
Asineops pauciradiatus^ E. D. Cope, Bull. E.S. Geol. Surv. Territ. 
vol. ill. (1877), p. 813, and op. cit. 1884, p. 87, pi. xiv. 
fig. 1.—Eocene (Green Elver Shales); Twin Creek, 
W 5 ’oming. [Imperfect fish; iSTational Tluseum, Wash¬ 
ington.] 
Asineops squamifrons, E. D. Cope, Proc. Amer. Phil. Soc. 
vol. xi. (1870), p. 381, and Ann. Eep. E.S. Geol. Surv. 
Territ. 1870 (1871), p. 426, and op. cit. 1884, p. 85, ___ 
pi. ix. fig. 5, pi. xi. Asineops viridensis., E. D. Cope, ^ ^ 
Ann. Eep. 1870 (1871), p. 426.—Eoce^e”(Green Eiver 
Shales); Green Eiver, Wyoming. [The type species. 
Ditto.] 
Family CYTTID^. 
Head without superficial cavities for mucus; premaxillae pro¬ 
tractile, and dentition feeble. Branchiostegal rays 7 or 8 in 
number. Vertebrae about 30 in number; the posterior abdominal 
centra with downwardly bent transverse processes. Pelvic fins with 
one spine and more than five articulated rays ; dorsal and anal fins 
extended, the former at least with anterior spines, which are not 
so numerous as the articulated rays. Squamation either irregular, 
very fine, or absent, often comprising only a few scutes ; lateral line 
inconspicuous. 
There do not appear to be any fossils in the Collection referable 
to this family. 
A distorted fish, with incomplete pelvic fins, too imperfect for 
precise determination, has been compared with the existing genus 
Oyttus and described as follows :— 
Cyttoides glarone.nsis.^ A. Wettstein, Eischfauna Tertiaer. Glarner- 
schief. (Denkschr. schweiz. Palaeont. Ges. vol. xiii. 1886), 
p. 91, pi. viii. fig. 5.—Oligocene ; Glarus. [Imperfect 
distorted fish ; Glarus Museum.] 
Extinct species of the existing genus Zeus are also imperfectly 
known as follows ;— 
Zeus henoisti, E. Lawley, Nnovi Studi Pesci, &c., Colline Toscane 
(1876), p. 65, pi. iv. fig. 5.—Lower Pliocene; Orciano, 
Tuscany. [Dermal plate.] 
Zeus hoernesi., D. G. Kramberger, Ead Jugoslav. Akad. vol. cvi. 
(1891), p. 86, pi. i. figs. 2, 4-7, pi. vi. figs. 1, 2.—Upper 
Oligocene; Tiiffer, Steiermark. [Fragmentary fish.] 
PART IV. / 
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