38 THE VOYAGE OF H.M.S. CHALLENGEK. 



oblong black spots along the side of the body. Ki Islands. Length of specimens, 

 5^ inches. Station 192 ; 129 fathoms. 



Myriodon waigiensis, Q. and G. Station 186 (trawl). 

 Serranus diacanthus, C. V. Ai-afura Sea. Station 189. 

 MesoiJrion annidaris, C. V. Arafura Sea, Station 189. 

 Mesoimon chrysotoenia, Blkr. Somerset, Cape York. 



Apogon monogramma, n. sp. (PI. XVI. fig. B). 



D. 7/^, A. f , L. lat. 26. The height of the body is one-third of the total length 

 (without caudal), the length of the head two-fifths. Inner edge of the preeoperculum not 

 serrated. Dorsal spines of moderate strength, the fourth a little longer than the third. 

 White (in spirits), with a well-defined narrow blackish band from the snout through the 

 eye, to and along the central rays of the caudal fin. No black round spot at the base 

 of the caudal. A narrow blackish line along the base of the soft dorsal and anal. 

 Length of specimens, 2 to 3 inches. Arafura Sea. 



Apogon septemstriatus, n. sp. (PL XVI. fig. A). 



D. 7/i, A. f, L. lat. 28. The height of the body is two-fifths of the total length 

 (without caudal), and ecj^ual to the length of the he-ad. Inner edge of the praeoperculum 

 not serrated. Dorsal spines rather strong, the third and fourth equal in length. White 

 (in spirits), with three well-defined narrow black streaks on each side ; the first from the 

 snout, through the eye, along the middle of the tail and caudal fin ; the second from the 

 snout along the superciliary margin to the back of the tail ; the third from the occiput 

 along the base of the dorsal fins ; a seventh strij)e runs along the median line of the 

 head and nape. No black round spot at the base of the caudal. A narrow blackish 

 line along the base of the soft dorsal and anal fins. Length of specimens, 3 inches. 

 Arafura Sea. 



Alwgon arafurce, n. sp. (PL XVI. fig. C). 



D. 7/^, A. f , L. lat. 26. Form of the body as in Apogon tceniopterus, but with the 

 snout shorter, and the caudal fin rounded. Both limbs of the prseoperculum are 

 serrated ; snout as long as the eye ; interorbital space convex, as wide as the eye. 

 Light coloured, with some indistinct darker' transverse spots on the back ; upper half of 

 the first dorsal black ; second dorsal and anal with a black band along the middle ; upper 

 margin of the second dorsal and posterior margin of the caudal black ; pectoral, ventral, 

 and hyoid region powdered with black. Length of specimen, 4^ inches. Arafura Sea. 



(?) Acrop)oma japonicum, Gthr., Arafura Sea (not in good state). 



