80 HAPLOMI. 
10. Fundulus extensus. 
Fundulus extensus, Jord. & Gilb. Proc. U.S. Nat. Mus. 1882, p- 855°; Jord. & Everm. Bull. U.S. 
Nat. Mus. xlvii. 1896, p. 646°. 
Hab. Lowrr Cauiroryia, Cape St. Lucas or lagoons near La Paz 2. 
11. Fundulus zebrinus. 
Fundulus zebrinus, Jord. & Gilb. Synopsis, p. 891 (1883)'; Jord. & Everm. Bull. U.S. Nat. Mus. 
xlvii. 1896, p. 646°. 
Hab. Rio Grande to Kansas 2. 
12. Fundulus dovii. 
Haplochilus dovii, Giinth. Cat. Fish, vi. p. 316 (1866)’, and Trans. Zool. Soc. vi. 1868, p. 481, 
t. 82. fig. 5°. 
Fundulus dovii, Jord. & Everm. Bull. U.S. Nat. Nus. xlvii. 1896, p. 650°. 
Depth of body 43-5 in the length, length of head 32. Snout as long as the postorbital parts of head. 
Diameter of eye 44 in the length of head and 1? in the interorbital width. Lower jaw a little shorter 
than the upper; teeth of the outer series in the lower jaw implanted horizontally. 30 scales in a 
longitudinal series. Dorsal 8. Anal 13-14, originating at a point equidistant from base of pectoral and 
base of caudal or a little nearer the latter, terminating below the origin of dorsal. Pectoral 3 the length 
of head, extending to the base of ventrals, which reach the vent. Caudal rounded. Olivaceous, with 
indistinct darker vertical bars; vertical fins with series of spots. 
Hab. Costa Rica!?, Punta Arenas (Dow). 
Two specimens, types of the species, 150 mm. in total length. 
This is the southern representative of the subgenus Zygonectes, Agass., and is close 
to the North-American Pundulus (Zygonectes) notatus, Rafin. 
9. LUCANIA, Girard, 1859. 
Lucania, Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 1896, p. 663. 
Uviparous. Mouth rather small, with short lateral clett; rami of the lower jaw firmly united; teeth conical, 
in a single series. 
Four species from the Atlantic Coasts and rivers of the United States, one extending 
southwards to ‘Tamaulipas. 
1. Lucania venusta. 
Limia venusta, Girard, U.S. & Mex. Bound. Surv., Fish. p. 71, t. 39. figs. 20-23 (1859) *. 
Lucania venusta, Girard, Proc. Ac. Philad. 1859, p. 118°; Gimth. Cat. Fish. vi. p. 810 (1866) *; 
Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 1896, p. 665*; Meek, Publ. Columbian Mus., 
Zool. v. 1904, p. 109°. 
Lucania affinis, Girard, 1. c.°. 
Depth of body 3 to 32 in the length, length of head 34 to 32. Snout shorter than eye, the diameter of which 
is 3 in the length of head; interorbital width 23 in the length of head. Lower jaw slightly projecting. 
