DISCUSSION OF SPECIES AND THEIR DISTKIBUTION. 351 



The single dorsal fin extends from the capital crest to the caudal fin, from which it 

 is not easily distinguished. Behind the long, bony ray already mentioned it is low, the 

 middle portion heing higher than the rest. The base is sheathed in transparent membrane, 

 an extension of the skin. The jjcctoral fins are of moderate size, placed low down, and at 

 a distance from the tip of the lower jaw equal to about an eighth of the total length of the 

 fish. The first ray is bony and very strong, but not longer than the rest, which are 

 branched. The ventral fi:is are very short, and are inserted a little behind the pectoral 

 fins, and oidy slightly below them. Only five slender, simple rays were counted in the 

 specimen. The anal fin is low, it is placed far behind, near the caudal flu, and its first 

 three or four rays are short. The vent is placed just before the fin. The tail behind the 

 anal fin has parallel margins, and is much compressed. It is low, and its lower edge is 

 finless, whilst its upper edge carries the posterior pcn-tion of the dorsal fin. The caudal 

 fin is short, and is not well distinguished from the dorsal fin; but there seem to be fifteen 

 rays, viz, 10 below the lateral line and 5 above. The lower angle only projects. This fin 

 is not set on obliquely, as in some of the genera of the family. 



The unarmed lateral line descends at an angle of 45'= from the angle of the capital 

 crest to behind the eye; it is then straight along the body to the base of the caudal fin. 



The stomach is ciccal, narrow, and tapers downwards. Numerous cii'ca are attached to 

 the intestine. The intestinal canal is long and straight; the egg-sac long and forked; the 

 liver of moderate size. 



TABLE OF MEASUREMENTS. 

 Inches. 



Inches 



Pectorals : 



Lcugtli 3,' 



Distance from tip of liiwor jaw 6J 



Distance from lower edfje of body tj 



Width of base ,'„ 



Ventrals: 



Lcngtb i 



Distance from root of pectorals /o 



Anal : 



Hciglit i"o 



Distance from caudal 1 J 



Tail, hciglit .'r, 



Caudal, length at lower angle I ^ 



Total length 50 



Height (1-t inches from snoutj 01 



Height of head through the eye 7f 



Thickness for the greater ])art of body 1+ 



Head 6i 



Eye: 



Diameter 2i 



Distance from front of head li 



Distance from edge of crest 3,-,, 



Mouth : 



Eictus 1? 



Width 2 



Teeth, length I'o 



Maxillary, width below f 



Dorsal : 



Length of lirst ray 12 J 



Height of middle portion 2 



LOPHOTES CAPELLEI, Temmixck and Sculkckl. (Figure 390.) 



Lophotes CapeUei, Temminck and Sciilegel, Fauna Japonica, Poissons, l.'il', ))I. lxxi.— (GCnther, Cat. Fish. 

 Brit. Mus., 111,312.) 



A Lophotcs haviug the length of the head equal to the height of the body, and con- 

 tained about 7 times in total length. The eyes very large, their diameter contained 3.V 

 times in the length of the head; the eye nearer to the throat than to the back. The angle 

 of the head in front somewhat less acute than in L. Cepediaiius. The length of the snout 

 slightly less than the diameter of the eye. Mouth moderate, the tip of the maxillary 

 reaching to the vertical from the anterior margin of the orbit. Teeth similar to those of 

 the European species. Edge of preoperculum rounded, with a somewhat acute angle. 

 The operculum rounded, its upjxu' edge a little emarginate. Opercular bones finely striate. 

 Body absolutely naked. The lateral line is straight, but in front of the eye ascends in a 

 gentle curve to the tip of the crest and the base of the first dorsal ray. Vent at the be- 

 ginning of the last eighth of the total length of the body; the anal flu, placed behind it, 

 is rounded, and the length of its l)ase twice as great as its hciglit, the height being not 

 more than half the vertical diameter of the orbit. The caudal is small, its length being 

 one-third of the height of the body, it being considerably larger in proportion than in L. 

 Cepediunus. Dorsal confluent with the caudal (not confluent in L. Cepnlifinus); its height 

 in the midtUe is equal to one-fourth of the height of the body, bat it decreases in height 

 couyiderably posteriorly and anteriorly, so that over the eye the rays arc scarcely percepti- 



