62 DISCOVERY REPORTS 



head and a little less than interorbital width. Scales on upper surface of head extending 

 forward to a little beyond a line between the anterior nostrils. Maxillary extending to 

 below the anterior nostril. 14 gill-rakers on lower part of anterior arch. 53 to 56 scales 

 in a longitudinal series, 7 from origin of dorsal to lateral line. Dorsal XVII 25 ; seventh 

 spine longest, its length about \ that of head. Anal III 12 ; second spine very stout and 

 much longer than third, its length z\ in that of head. Pectoral with 6 simple rays, the 

 uppermost or second prolonged, extending to above anterior part of anal, length of fin 

 (measured from axil to tip of longest ray) if to if times that of head. Supra-cleithrum 

 narrow, about \ as broad as eye. Brownish above, silvery below ; scales on upper parts 

 of body with silvery centres, giving the appearance of longitudinal stripes ; an indistinct 

 dark band on the back in front of the dorsal fin, connecting the pectoral fins ; a dark 

 patch below the eye and another on the edge of the operculum. 



Hab. Juan Fernandez. 



Described from 2 specimens, 360 and 370 mm. in total length, collected by the 

 ' Challenger ' Expedition. 



This species, which falls into the group Acantholatris of Gill, is closely related to 

 C. monodactylus (Carmichael) from Tristan da Cunha and Gough Island. In that 

 species, however, the head is a little larger (t>\ to Zz m length of body), the diameter 

 of the eye is about \\ in length of head and 1 J to 1^ in the interorbital width (in adults) ; 

 the maxillary extends to below the posterior nostril; there are 16 or 17 gill-rakers on 

 the lower part of the anterior arch; there are 50 to 52 scales in a longitudinal series; 

 the longest dorsal spine is less than J the length of the head ; the pectoral fin is as long 

 as or a little longer than the head, the prolonged ray extending to above the vent or 

 not as far; and there are 5 or 6 dark cross-bars on the upper parts of the sides. 



PINGUIPEDIDAE 

 Parapercis chilensis, sp.n. 



St. WS742. 5. xi. 31. 38 22' S, 73 41' W. Small beam trawl, 58 m.: 3 specimens, 102-270 mm. 

 (holotype 270 mm.). 



Depth of body 4^ to 4! in the length, length of head about 3^. Snout as long as or 

 a little longer than eye, diameter of which is 3! to \\ in length of head and \\ times to 

 twice the interorbital width. Maxillary extending to or nearly to the anterior margin 

 of the eye; teeth in broad villiform bands in both jaws, those of the outer series enlarged 

 but not canine-like ; vomer and palatines toothless. Upper surface of head, cheeks and 

 opercles scaled; margin of praeoperculum smooth. 9 short gill-rakers on lower part 

 of anterior arch. Scales ciliated; 70 to 75 in a longitudinal series, n or 12 between 

 dorsal spines and lateral line. Dorsal IV 27-28; spines increasing in size to the last, 

 which is about as long as eye and f as long as the first soft-ray. Anal 22-23. Pectoral 

 f to f as long as head. Pelvics extending to or nearly to origin of anal. Caudal sub- 

 truncate ; caudal peduncle about as deep as long. Brownish, with some indistinct dark 

 markings on the body which tend to form irregular cross-bars ; dorsal and caudal fins 

 dusky; rays of the anal tipped with yellowish- white ; pectoral pale, with a dark crescentic 

 spot at its base. 



