524 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.41. 



First ray, 2^ in head, twice length of last, fin outline slightly con- 

 cave, its base, including spines 1|- in head. Pectoral somewhat 

 sharp, its length 1§ in head. Ventrals short, 2 in head, extending 

 slightly over halfway to anal insertion. Anus halfway between anal 

 spines and tip of ventral. Caudal deeply forked, lobes acute. 



Color in alcohol uniform, silveiy on sides and below, somewhat 

 darker above. Dorsals margined with black, caudal tipped on both 

 lobes, with oblique stripes from base of outer rays to tips of inner, 

 and a median one along whole length of central two rays. Peritoneum 

 dense black. 



The young of this species was seen by Doctor Jordan in a tide pool 

 at Misaki, besides the specimens above mentioned from Tanegashima, 

 an offshore island of southern Japan. We have compared the types 

 of Kuhlia arge with this species, and we are sure that no difference 

 exists. 



This species, unlike most others of the family, is strictly marine, 

 living outside the coral reefs, the young entering tide pools among the 

 rocks. 



KuMia xenura Jordan and Gilbert, describea from specimens 

 alleged to come from Salvador, seems to be the same as Boulengerina 

 sandvicensis (Steindachner) (Kuhlia malo, var. sandvlcensis) from 

 Hawaii. 



(raiuia, ribbon; oupd, tail.) 



2. Genus KUHLIA Gill. 



Kuhlia Gill, Proc. Acad. Nat. Sci. Phila., vol. 13, 1861, p. 48 (dliatus). 

 Moronopsis Gill, Proc. Acad. Nat. Sci. Phila., vol. 15, 1863, p. 82 (marginatus). 

 Paradules Bleeker, Ned. Tijd. Dierk., vol. 1, 1863, p. 257 (marginatus). 



Type. — Perca ciliata Kuhl and Van Hasselt, 



Body oblong, much compressed; head compressed; mouth short, 

 oblique; maxillary without supplemental bone, relatively long, 2 to 

 2| in head; lower jaw projecting; no canines; the teeth subequal; pre- 

 orbital sharply serrate; angle of preopercle without strong spine. 

 Gill-rakers slender, about 9 + 18 in number, smaller and fewer than 

 in Boulengerina. Pseudobranchise large. Scales moderate, not very 

 rough; lateral line distinctly arched in front; top of head naked. 

 Dorsal fin deeply notched, but not divided to base, with 10 slender 

 spines; caudal lunate; anal spines graduated, the fin relatively short 

 and high. Coloration bright silvery, mottled with dark olive, the 

 peritoneum silvery, or spotted with brown. Tropical Pacific, the 

 species inhabiting clear streams and pools at the foot of waterfalls, 

 with the habit of the American black bass. 



(Named for Kuhl, a naturalist, associate of Van Hasselt, and the 

 discoverer of the typical species in the streams of Java.) 



