XIPHIIDJ!. 
497 
Eistiophorus robustus, E. D. Cope, loc. cit. 1869, p. 310. Xiphias 
robustus, J. Leidy, in F. S. Holmes, Post-Plioc. Foss. 
S. Carolina (1860), p. 119, pi. xxvii. figs. 3-5. — Tertiary 
Phosphate Beds ; South Carolina. 
Histiophorus homalorhamphus, E. D. Cope, Proc. Boston Soe. Nat. 
Hist. vol. xii. (1869), p. 310. — Eocene ; Squankum, N. J. 
The fossil rostra described as follows arc not clearly distinguish- 
able from those of Histiophorus : — 
Brachyrhynchus solidus, P. J. Tan Beneden, Bull. Acad. Roy. 
Belg. [2] vol. xxxi. (1871), p. 498, pi. ii. figs. 5-7. 
— Middle Eocene (Bruxellian) ; Ghent, Belgium. [Abbey 
of Afiligem, Molle, near Ghent.] 
Eraehyrhynchus teretirostris , P. J. Tan Beneden, ibid. p. 495, 
pi. i., pi. ii. figs. 1, 2 ; (?) G. Capellini, Mem. Accad. Sci. 
Istit. Bologna [3] vol. ix. (1878), p. 255, pi. iii. figs. 9, 
10. Encheiziphius teretirostris, L. Rutimeyer, Terhandl. 
naturf. Ges. Basel, pt. 1 (1857), p. 561 .— Pliocene ; Mont- 
pellier, Southern France, and Antwerp, Belgium. (?) Mio- 
cene ; Lecce, Italy. [Type species. Natural History 
Museum, Soleure.] 
Erachyrhynchus van-benedensis, R. Lawley, Nuovi Studi Pesci, 
etc., Colline Toscane (1876), p. 70. Lower Pliocene, 
Orciano, Tuscany. 
Embalorhynchus kinnei, O. C. Marsh, Proc. Amer. Assoc. Adv. 
Sci. 1869 (1870), p. 228.— Eocene ; Squankum, N. J. 
The base of a rostrum, not yet described, from the Lower Plio- 
cene of Orciano, Tuscany, is named Xiphias delfortriei by R. Lawley, 
°P- dt. 1876, p. 67. 
Division C. PERCIF0RMES. 
I ectoral fins with hourglass-shaped basals, which are longer than 
road ; pelvic fins thoracic, with one spine and four or five articulated 
a } s - Dorsal fin-rays well-developed, and anal usuallj with two 
°5 more Powerful spines. No bony stay between circumorbital 
rin g and preoperculum. 
Synopsis of Families represented, by Extinct Genera or Species. 
I. Lower pharyngeal bone 9 very rarely fused 
together. 
Teeth small and conical, some on inner 
bones ; spinous dorsal usually as much 
part iv. 2 k 
