226 PERCY SLADEN TEUST EXPEDITION. 



52. Apogon quinquestriatus, sp. n. 



Depth of body 3 in the length, length of head 2f. Snout f as long as eye, the 

 diameter of which is 3 in the length of head ; interorbital width 4 ia the length of head. 

 Jaws equal anteriorly ; maxillary extending to below middle of eye. Prjsoperculum 

 serrated; prseopercular ridge and supraclavicle entire. 13 or 14 gill-rakers on the 

 lower part of anterior arch. About 24 scales in a longitudinal series. Dorsal VII, I 9 ; 

 spines rather slender, the third the longest and J the length of head ; soft dorsal highest 

 anteriorly, the free edge probably slightly concave. Anal II 8, the second spine \ the 

 length of head. Pectoral § the length of head : ventrals nearly reaching the origin 

 of anal. Caudal probably notched. Caudal peduncle 1^ as long as deep. A dark 

 longitudinal stripe from the snout through the eye to the end of the middle caudal rays, 

 another from above the eye to the upper part of the caudal peduncle ; a median stripe 

 from interorbital region to origin of dorsal. 



Maldives, S. Nilandu, 30 to 36 fathoms. 



Two specimens, 46 mm. in total length. 



Allied to A. quadrifasciatus, C. & V., and to A. septemstriatus, Gthr. 



53. Ap Of/on t (Biiiophorus, sp. n. 



Depth of body 2| to 3 in the length, length of head 2|. Snout |- to | as long as eye, 

 the diameter of which is 2| to 3J in the length of head ; interorbital width 4^ to 5 in 

 the length of head. Jaws equal anteriorly ; maxillary extending to below the posterior 

 edge of pupil, or a little beyond. Prseoperculum serrated ; prseopercular ridge and sub- 

 orbitals entire; supraclavicle denticulated. 12 gill-rakers on the lower part of the 

 anterior arch. 24 scales in a longitudinal series. Dorsal VII, I 9 ; third spine longest 

 and strongest, | to f the length of head ; soft dorsal higher than the spinous, the 

 anterior rays the longest, the free edge concave. Anal II 8, the second spine ^ to | the 

 length of head. Pectoral | to § the length of head ; ventrals extending to the origin of 

 anal. Caudal notched. Caudal peduncle 1^ to 1§ as long as deep. 4 dark longi- 

 tudinal stripes on each side, the uppermost at the base of the dorsal fins, the others 

 terminating on the basal part of the caudal ; second stripe originating on the snout and 

 running above the eye and the lateral hne ; third stripe running from the snout through 

 the eye and the base of the j)ectoral along the middle of the side, not expanding to form 

 a spot on the caudal peduncle ; fourth stripe originating at the lower part of the eye ; 

 on the opercular bones the third and fourth stripes are somewhat expanded and very 

 strongly defined ; a dark stripe on the basal part of the soft dorsal, a less distinct one 

 on the anal. 



Maldives. 



Three specimens, the largest 92 mm. in total length. 



The species is nearest to A. balinensis, Blkr. A specimen from Samoa has recently 

 been figured by Jordan and Scale (BuU. U.S. Fish. Bureau, xxv. 1905, fig. 37) as a 

 colour- variety of A. novemfasciatus, C. & V. 



