346 



1. Macropodus cupanus (C. V.) 



Polviuaitthiis iiipa/iiis Cuvier & Valenciennes, Hist. Nat. Poiss. \'I1. 1831, p. 357. 

 Polyacantlnis cupanus Giinther, Cat. Brit. Mus. III. 1861, p. 381. 

 Polyacanthus cupanus Kner, Fische Novara Exp. 1865 — 1867, ]). 218. 

 Polyacanthus cupanus Day, Fishes of Malabar 1865, p. 134. 

 Polyacanthus cupanus Day, Fishes of India 4°, 1878 — 1888, p. 371. 

 JSIacropodiis cupanus Regan, Proc. Zool. See. London 1909, p. 775- 



D. XIII. 6—7 or XIV. 6—j; A. XVII— XVIII. ii — 12 or 

 XIX. II; P. II— 12; V.I. 5; L.l. 30 — 31; L.tr. 107.,. 



Height about 3.4, head 2.9 — 3 in length. Rostro-dorsal profile 

 convex. Eye ca. 3.1 in length of head, about 1.4 in postorbital 

 part of head and nearly equal te slightly convex interorbital 

 space. Snout much shorter than eye, maxillary reaching to 

 vertical through space between nostrils. Praeorbital strongly 

 serrated. Origin of dorsal about opposite origin of anal, with 

 a basal sheath of two series of alternating scales. Soft dorsal 

 and anal pointed, their penultimate rays being produced on 

 first third of caudal, which is also pointed. Pectorals shorter than 

 head without snout. Height of caudal peduncle near base of 

 caudal somewhat shorter than postorbital part of head. Alcohol 

 specimens brown, lighter below; there may be a darker band 

 from snout through eye on operculum, and continued, less 

 pronounced, to base of caudal, which may carry a faded dark 

 spot, sometimes above dark lateral band, a lighter one. 

 Length 48 mm. 



Habitat: Lake Anak laut, on Pulu Weh near Sumatra !. — 

 British India, Malay Peninsula. 



Note. There are some differences between our specimens and 

 those of Day and Regan, especially in the dorsal and anal. We 

 find the fin-formula D. XIII— XIV. 6-7, A. XVII— XIX. 1 1 — 12 ; 

 according to Kner it is U. XI V— X V.5 — 6, A. X VII— XIX.9— 1 1 ; 

 according to Day and Regan D. XIV— XVII. 5—7, A.XVI— 

 XIX. 9 — 1 1. But these differences seem to us to be too small to 

 doubt the specific identity. 



2. Macropodus opercularis (L.). 



Labrus opercularis Linne, Amoen. Academ. IV. 1788, p. 428. 



Chaetodon chinensis Bloch, Ausland. P'ische IV. 1790, p. 5 ; Taf. CCXVIII, Fig. i. 



Chactodon chinensis Bloch, Schneider, System, ichthyol. 1801, p. 234. 



Labrus opercularis Bloch, Schneider, ibid. p. 245. 



Chaetodon chinensis Lacepede, Hist. nat. Poissons, IV. 1802, p. 461, 496. 



Macropodus viridi-auratus Lacepede, ibid. p. 416, 417. 



