REGAN—MARINE FISHES. 223 
lobes more or less produced and pointed in the adult. Reddish brown; edges of scales 
lighter ; a bluish-white stripe from below eye to base of pectorals; fins yellowish. 
This species was originally described from a small specimen of 47 mm. from 
Haddumati. Another of about the same size has since been received from Cargados 
Carajos, and also some adult specimens (85 to 100 mm. in total length) collected by 
Mr. F. W. Townsend at Kurrachee. These are included in the amended description 
given above. The relations of A. cooperi to its nearest allies may be shown thus :— 
Snout, interorbital region, and maxillary scaly; lateral line curved, not forming an angle below 
the hinder dorsal rays. 47 to 52 scales in a longitudinal series, 5 or 6 between first dorsal 
spine and lateral line, 4 between middle dorsal spines and lateral line. Dorsal X 15-17. 
Anal III 7. 
I. Dorsal spines subequal from the third or fourth, the third not produced. 
A. Length of head 3 to 34 in the length of the fish. 
Maxillary extending to below middle of eye (adult); fourth dorsal spine 2 
the length of head; 44 to 46 scales in the lateral lime. . . . A. hypselosoma, Blkr. 
Maxillary extending to below posterior part or posterior edge of eye eas: 
fourth dorsal spine 4 (adult) or 2 (young) the length of head; 47 to 49 
Sealesmonpe lateralimer te. Ye.) eee ew eo) oe ee hw Ancoopent ~Regamy 
B. Length of head 34 in the length of the fish ; fourth dorsal spine 3 
tuelensthrofhead (young)) so. . ww ee tee 8 AL hentatus, Klunz, 
IL. Third dorsal spine produced into-a short filament. . . . . . . <A. pleurotenia, Blkr. 
XENANTHIAS, gen. nov. 
Body compressed; scales large, smooth, ciliated. Lateral line incomplete, ending 
below the soft dorsal; tube straight, extending nearly the whole length of the exposed 
part of the scale. Mouth rather large, protractile; no supramaxillary; jaws with 
villiform teeth and a few small canines; narrow bands of teeth on vomer and palatines ; 
tongue smooth; head scaly, except snout, lower jaw, and lower part of maxillary ; 
preeopercle, subopercle, and interopercle serrated; three opercular spines.  Gill- 
membranes separate; 6 or 7 branchiostegals; pseudobranchiz present; 3} gills. Two 
dorsals connected at the base with X, 14-15 rays, the spinous dorsal a little longer than 
the soft. Anal short, with III 6-7 rays. Caudal probably subtruncate. Pectoral 
subsymmetrical, pointed; rays 14, all simple, not branched. Ventrals below pectorals, 
close together, with I 5 rays. 
Evidently closely allied to Dactylanthias, Blkr., which has the dorsal fin undivided. 
From Bleeker’s figure of D. haplodactylus it would appear that the lateral lme may be 
only vestigial on the caudal peduncle in that species. 
41. Xenanthias gardineri, sp.n. (Plate 28. fig. 1.) 
Depth of body 24 to 24 in the length, length of head 24 to 23. Snout a little shorter 
than eye, the diameter of which is 3} to 3% in the length of head and twice the inter- 
orbital width. Lower jaw slightly projecting; maxillary extending beyond the vertical 
