642 



BULLETIN <IF THK TNITKD STATES FLSH COMMISSION 

 Hoplichthys platophrys, new species. Fit:. L'."il), 



Tyi"', a siiei'iiurii 711 nun. Inni.', fnnii slalimi ll'.CiL', iicnr Liiysun Islaii'l, ilc|illi .I.M falhnriis; ty]u'. 

 No. 51IK1), V. S. Nal. Mils. 



Differilij; fnmi ntlicr Uiiown spiTies ni /fn/ilii-lilhiis in the small eye, wiilr inlci(iil)ital space, the 

 more, complete union by nicmliiane of the moililieil lower pectoral rays, and the weaker spines on 

 head and lateral plates. 



Head :!7 luuidredllis of tolal li'ii^^th without caudal; f,'reatest width of heail, at liase of spini'- 

 bearing ridges 2)S; diameter of eye 7; interorliital width o; leiit;th of snout IM; leuirtli of iua.\illary 15. 

 D. vi-15; A. IS; P. 13 1 8; V. i. 5. Plates 27. 



Snout somewhat broader and more sijuarely truncate than in II. <-iirinu.i; eye very small; inter- 

 urbital space much wider. The treneral spination of head agrees with I[. rilrhiiix, but the type is too 

 young for a determination of details; spines aloii.<; suborbital ridge, as well as those elsewhere on head, 

 smaller tlian in cilriniif:, and not forming expamled lobes as in that species; mo\itli similar, with lower 

 jaw shorter, the maxillary reaching a little p.ist front of orbit; teeth very miiuile, I lut distinguishable 

 in very nariow bands on jaws, vomer and palatines; braiichiostegals 7. 



Fig. 2.'j0. — Ilnplichtht/splatnphn/s (iilhcrl, lirw s[tfcic^. Type. 



The structure of the tins is w holly like that of //. cilriiiiis^ except that the lower •'> pectoral rays 

 are joined by membrane to one another and to the rest of the tin for more than balf the length of 

 the rays. In our smallest (■ilriniia, 96 nmi. long, there is no apjiroach to this condition. 



The plates agree in number and structure with the other species of the genus. There is a strong 

 spine at the angle of each jilate, with a small concealed one below and in front; the upjier half of each 

 plate contains a single denticulate ridge running downward and hackwanl, the lowermost tooth on the 

 ridge longer than the others. Young cilrinun have also a single spinous ridge on upper half i.f each 

 plate, the number of ridges increasing with age. 



Color in spirits, light olive, without white or silvery pigment; 'S broad and 2 narrow bars on back, 

 as in young of ci7ri»H.s- and in adults of IdiKjsdvrfii. In plalvpliri/s, the bars below soft dorsal end each 

 in a lilack lilotch, below lateral plates. Head with some dusky markings aliove, and 3 small black 

 spots below suborbital ridge; pectoral with ilusky mottlings; spinous dorsal with a liroail black bar 

 occupying all but base of anterior rays, anil a narrow white margin; soft dorsal with a dusky spot near 

 l>ase of each ray, and a dusky subterminal band; anal with a wide black submarginal band, edgeci 

 with white; caudal with a dusky terminal l)and. 



(Inly the tyjie known. 



Family PTKROPS \W1I).4'. 



Osurus schauinplandi (Sleinilacbner). 



Several speci?nens, nKjstly immature, were dredged in depths of 14 to 90 fathoms. Young speci- 

 mens are more uniformly colored than adults, have the caudal emarginate but not deei>ly forked and 

 the lobes not produced; the ventral tins are greatly produced, nuicli longer than in adults, reaching 

 base of fourth or fifth anal ray. In adults, the ventrals fail to reach origin of anal. 



