274 U.S. NATIONAL MUSEUM BULLETIN 202 Vol. 2 



origin under base of seventh or eighth dorsal ray; pectoral rays 12, 

 scale rows from upper edge of gill opening to base of caudal fin 57 

 to 61, with 5 above lateral line and 1 below it. (Delagoa Bay, South 



Africa.) Apocreedia ^ Beaufort 



26. Snout not fleshy, jaws about equal; lateral line not described; dorsal rays 

 VI, 24; anal "vi,21"; pectoral 18; scale rows from upper edge of gill 

 opening to base of caudal fin about 72; anal origin under base of third 



soft dorsal ray. (China Sea.) Oxuderces ^* Eydoux and Souleyet 



16. Pelvic fins present; pelvic rays 1,4 or 1,5. 



3a. Dorsal fin single, first 2 or 3 rays, if detached, are long and filamentous; 

 opercle lacks a spine. 

 4o. Origin of anal fin in front of dorsal origin and notably closer to tip of 

 snout than to base of caudal fin; pelvic rays 1,5. 

 5a. Lateral line along midside all the way to base of caudal fiji; dorsal fin 

 origin closer to tip of snout than to caudal fin base, 1.4 head 

 lengths behind snout tip, and over base of fourth or fifth anal 

 ray; anal origin 1.1 to 1.2 head lengths behind tip of snout; lower 

 jaw projects a little beyond upper jaw; dorsal rays 32; anal 36 

 or 37; pectoral 16; scales 42. (Victoria, Australia.) 



Lesueurina " Fowler 

 56. Lateral line below midside, at least posteriorly. 

 6a. Dorsal fin origin equidistant between caudal fin base and rear of 

 head, or about 2.2 head lengths behind tip of snout; pectoral fin 

 rays undifferentiated; lateral line along anal fin base for its 

 entire length; jaws about equal, lower jaw probably slightly 

 longer than upper jaw; dorsal rays about 12; anal about 26; 

 pectoral 12; scales about 40, with 4 above lateral fine and only 



1 scale below. ( Austraha.) Creedia " Ogilby 



66. Dorsal tin origin closer to rear of head than to caudal fin base. 

 7a. Upper rays of pectoral fin notably shorter than lower rays, the 

 latter thickened and expanded; dorsal fin origin over base 

 of aliout eight or ninth anal ray; lateral line next to anal fin 

 base in its posterior half only; jaws about equal; dorsal rays 

 19; anal 29; pectoral 8 + 9 = 17; scales 37. (Australia.) 



Schizochirus '^ Waite 

 76. Pectoral rays undifferentiated; not as in Schizochirus. 



So. Scales about 100 to 110, very small; dorsal fin origin closer to 

 snout tip than to caudal fin base; dorsal fin origin 1.5 head 

 lengths behind rear of head; lateral line parallel to anal 

 fin base and about 3 or 4 scales removed from it; jaws 



" Apocreedia Beaufort, Trans. Roy. Poc. South Africa, vol. 31, pt. 5, p. 476, fig. 1, 1948 (type species, 

 A. vanderhoTSti Beaufort; USNM 144489, 3 paratypes). 



'* Oxuderces Eydoux and Souleyet, in Voyage autour du monde ex6cut6 pendant , . . 1836 et 1837 sur 



. . la Bonite, Zoologie, vol. 1, pt. 2, p. 181, pi. 8, fig. 3, 1842 (type species, O dentatus Eydoux and 

 Souleyet) 



I have seen no specimens. The inclusion of this genas as related to the Trichonotidae is open to doubt. 

 The type or other specimens must be studied to determine relationships. 



'» Lesueurina Fowler, Proc. Acad. Nat. Sci. Philadelphia, vol. 59, p. 440, fig. 9, 1908 (type species, Lt»u- 

 eurella platycephalus Fowler, misspelling for Lesueurina plain cephalus Fowler). 



'« Creedia Ogilby, Proc. Linnean Soc. New South Wales, vol. 23, p. 298, 1898 (type species, Creedia dathris- 

 quamis Ogilby). 



" Schizochirus Waite, Rec. Australiaa Mus., vol. 6, pt. 4, p. 241, figs. 33, 34, pi. 26, fig. 3, 1904 (type species, 

 Schizochirus insolens Waite). 



