NEW PHILIPPINiE CALLIOXYMIDAE FO'WLER 29 



sized with several blackish-brown spots. Anal transparent. Pectoral 

 pale, with four very slightly darker transverse bars above. Ventral 

 pale. 



Philippines. Known chieily by the long preopercle spine and white 

 €olor of the thorax. 



Characterized by its dentition and especially by the long opercular 

 flap encroacliing on the pectoral fin base. Ventral without upper 

 basal membrane connecting fin to lower outer part of pectoral. It 

 differs from Eleutherochir opercularis in the projecting lower jaw, the 

 crooked or arched terminal preopercular spine, narrower bony inter- 

 orbital, and pale ventrals. 



Type.— V.S.N. M. No. 99435. Hinunangan Bay, Leyte. Seine. 

 July 30, 1909. Length 52 mm. 



(Named for David McCadden, formerly taxidermist in the Academy 

 of Natural Sciences of Philadelphia, to whom I am indebted for many 

 American fishes.) 



DICALLIONYMUS, new genus 



Type. — Callionymus goramensis Bleeker, 



Body elongate, slender, depressed anteriorly. Head moderate, 

 depressed, as seen from above tapering into rather narrowly triangular 

 muzzle. Snout nearly pyramidal. Eye rather large, well invading 

 upper profile of head, upper velum of eye invading pupil above. 

 Mouth protractile down and forward, jaws subequal or lower little 

 shorter. Maxillary reaches front of eye, entire. Teeth in villiform 

 bands in jaws. Interorbital very narrow bony frenum, between large 

 close-set eyes. Long preopercular spine Iji times eye in length; with 

 small basal denticle directed forward, terminal spine upturned and 

 with five others along its upper edge. Gill opening small slit, con- 

 cealed by opercular flap, which rounded and not reaching pectoral 

 base. Upper lateral Ime normal, along upper side of back; lower 

 lateral fine extends only along lower side of tail, and like upper ex- 

 tended on caudal base. First dorsal spine elongate, filamentous, 

 reaches back well into middle of second dorsal. Last dorsal ray nearly 

 long as head and reaches well into caudal base. Edge of soft dorsal 

 entire. Anal with a slight notch along edge of each membrane. 

 Caudal but little longer than head, cuneate, lower median rays longest. 

 Pectoral broad, little shorter than head. Ventral longer than 

 pectoral, broad with inner membrane well connected up on pectoral 

 base. Anal papilla simple point. Coloration pale, variegated. 



Distinguished from Synchiropus, with wliich it was later placed by 

 Bleeker, this genus is unique among the Callionymidae in the presence 

 of two lateral lines. It resembles Synchiropus in its gill openings. 



(5ts, two + Callionymus; with reference to the two lateral lines.) 



