404 U.S. NATIONAL MUSEUM BULLETIN 2 02 VoL 2 



CALUONYMUS CALLISTE Jordan and Fowler 



Plate 122,C 



Callionymus cnlliste Johdan and Fowler, Proc. U. S. Nat. Mus., vol. 25, p. 957, 



fig. 9, 1903 (type locality, Japan; types not seen). 

 Callionymus hudsoni Fowler, Proc. U. S. Nat. Mus., vol. 90, p. 8, fig. 5, 1941 



(type locality, Philippines; type, female, USNM 99412). 

 Callionymus distethommatus Fowler, Proc. U. S. Nat. Mus., vol. 90, p. 18, fig, 11, 



1941 (type locality, Philippines; type, male, USNM 99426). 



SPECIMENS STUDIED 

 Guam: 1945, Frey, 1 specimen, 20 mm. 



Description. — Dorsal rays IV-vii,l; anal vi,l; pelvics 1,5; pectorals 

 about 18 rays; branched caudal rays 4-1-3. (See table 119.) 



Head to tip of preopercular spine 3.3 greatest depth 6.0, longest 

 ray of pectoral 4.3 and of pelvic fins 3.2; all in standard length. 

 Snout 3.1; eye 2.9; postorbital length of head to tip of preopercular 

 spine 2.0; tip of snout to posterior edge of maxillary 3.0; longest 

 pectoral ray 1.2; longest pelvic ray 0.8; all in length of head to tip of 

 preopercular spine. Least width of interorbital space 9.0 in eye. 



Head depressed, snout depressed and slightly concave in front of 

 and between orbits; snout and tip of lower jaw about equal; premaxil- 

 laries protractile, when fully retracted not reaching past tip of snout; 

 teeth villiform and in a band in both jaws; no teeth on vomer or 

 palatines; no free dermal flap flt rear of opercle; preopercular spine 

 short, with an antrorse spine near the tip hooked outward and probably 

 one or two others broken off on inner side of tip; gill opening above 

 opercle in the form of a small foramen; membrane connecting the 

 pelvic fin with the pectoral base joined on latter opposite middle of 

 base; one simple lateral line; body and head naked. 



Color in alcohol. — Background color pale, with about 4 brownish 

 bars on back and sides standing out among irregular darkish mottlings 

 with whitish spots; just below lateral line on sides 3 dark dots, each 

 in brownish blotch; cheek w^th two short vertical dark lines in a 

 darkish pigment spot, one below middle of eye and the other below 

 rear edge of orbit; a similar black line in a darkish spot on opercle. 

 A small dark pigmented area at corner of mouth, others on snout and 

 under side of head; dorsal caudal, and paired fins finely barred with 

 tiny black spots; anal plain white. 



Remarks. — The above described specimen is a female and I am 



unable to separate it from C. hudsoni, the type of which is a female. 



C. distethommatus and C. calliste appear to be males of this species. 



Since I have not examined a type of calliste the identification is open 



to some doubt. 



Genus SYNCHIROPUS Gil! 



Synchiropus Gill, Proc. Acad. Nat. Sci. Philadelphia, 1859, p. 129, 1860 (type 

 species, Callionymus lateralis Richardson) . 



