of 0(6 Fishes of the FumiJi/ Lopliiid;e. 279 



develops at its end; tlie posterior rays become more and more 

 concealed with increase in size), the length and shape of tlie 

 humeral spine, the size and number of the teeth, and the sizs 

 of the eye, but all these features are subject to considerable 

 variation. 



Synopsis of the Genera. 



I. Gill-openings partly below, partly in front of 



and above the pectorals. Teeth in the lower 

 jaw mostly in 3 or 4 series ; about 19 ver- 

 tebrae 1. Chirolvphiu^, g. n. 



II. Gill-openings entirely below or behind the 



pectorals. 

 A. Teeth in the lower jaw mostly in .3 series ; 



about 19 vertebrae ". 2. Lophiomus, Gill. 



Jj. Teeth in the lower jaw mostly in 2 series ; 



27-32 vertebrae 3. Lophim, Linn, 



Chirolophius, gen. nov. 



Teeth in the lower jaw mostly in 3 series, anteriorly in 4 

 or 5 series ; opercular membrane with a free posterior margin ; 

 gill-openings extending on to the upper surface in front of the 

 pectorals; pectorals with 13-18 rays, posterior to the gill- 

 openings. Dorsal with IV-VI, 7-9 rays, anal with 5-6, the 

 last ray of each cleft to the base and supported by a single 

 basal bone. VertebriB about 19. 



The three species of this genus which are represented in 

 the British j\luseum are described below under the names 

 Ch. N'aresii, Giinther, Ch. Moseleyi, sp. n., and Ch. Murray i, 

 pp. n. The following also appear to belong to this genus: — 

 Lophius gracilimanus^ mutilus, and lugubris, Alcock, and 

 Lophiomus spilurus, Garman. 



Three specimens taken by the ' Cliallenger ' were described 

 by Dr. Giinther under the name Lophius Naresii, after 

 Sir George Nares. They appear to me each to belong to 

 distinct but closely allied species, and the largest example, 

 from the Philippines, figured in the " * Challenger ' Shore- 

 Fishes," pi. XXV., must be regarded as the type of Ch. Naresii. 

 This figure is excellent, except for the fact that the last dorsal 

 ray is represented as simple instead of being cleft to the base. 



In all three species the head is longer than broad, the 

 angle of the mandible is on a level with the hind margin of 

 the eye, the humeral spine is simple, the spines borne by the 

 palatines, just behind the anterior ends of the maxillaries, 

 are three in number on each side (the first very small, the last 

 the longest), and the supraorbital ridge is elevated and dentated. 



20* 



