FAMILY, XXVII— GOBIIDJE. 319 



portions scarcely enveloped in skin : caudal elongate and pointed. Pectoral not enveloped in skin, half as long 

 as the ventrals and 2/7 of the length of the head. Air-vessel — large and oval. Scales — a few crypts containing 

 some rudimentary ones exist in the posterior part of the body. Colours — brownish-olive superiorly, reddish 

 inferiorly. Pectoral and ventral yellow, with their outer halves black. Vertical fins blackish. 



An excellent coloured figure, 10 inches in length, marked Amhlyopus calculus, Nat. size, exists of this 

 species amongst Sir W. Elliot's drawings of fish. It was captured at Waltair, September, 1852. 



Habitat. — Calcutta, Lower Bengal, and along the coasts of the Bay of Bengal at least as low as Waltair, 

 also Burma, certainly so far as Moulmein. The specimen figured is from Calcutta. 



6. Gobioides rubicundus, Plate LXVII, fig. 6. 



Ham! Buch. Pish. Ganges, pp. 37, 365, pi. '5, f . 9. 

 Amhlyopus Mayenna, Cuv. and Val. xii, p. 163. 

 Amhlyopus rubicunda, Swainson, Fishes, ii, p. 279. 

 Amhlyopus anguillaris, Richards. Ich. China, p. 207. 

 Amhlyopus Hermannianus, Giinther, Catal. iii, p. 135. 

 Amhlyopus tcenia, Giinther, Catal. iii, p. 135. 

 Odontamblyopus rubicundus, Bleeker, Gobioides, 1875, p. 42. 



B. v, D. 6 | 35-39, P. 30, V. 1/5, A. 33-36, C. 15. 



Length of head 1\ to 8, of caudal 5 to 6, height of body 12 in the total length. Eyes — high up, in the 

 front third of the head, almost concealed. Greatest width of head equals half its length, and its height equals 

 its length behind the eyes. Cleft of mouth oblique, and of moderate depth. Barbels — absent.* Teeth — an outer 

 row of about eight long, curved, pointed ones in the premaxillaries, and of about twelve similar ones m. the lower 

 jaw, posterior to these are one or two villiform rows in both jaws. A pair of posterior canines exist above the 

 symphysis of the lower jaw. Fins — dorsal and anal fins not enveloped in skin, but both continuous with the 

 caudal, the anal (as shown in the figure) is often only connected to the caudal by its base. The dorsal fin is 

 about 1/2 the height of the body. Pectoral as long as the head behind the eyes, and the ventral nearly as long. 

 Caudal lanceolate. Scales — in the form of crypts on the head, minute ones begin to appear on the body in its 

 last half, and become more distinct near the tad. Colours — greenish-olive superiorly, becoming dull white below, 

 vertical fins diaphanous : caudal black. 



The proportions differ greatly with age. In one from Sind, 7| inches long, D. 6 | 33, the head is 9|, 

 caudal 3| in the total length. 



Habitat. — Seas of India and estuaries, very common in the Hooghly at Calcutta, where it attains at least 

 11 inches in length. The specimen figured (life-size) is from Calcutta. 



7. Gobioides tenuis, Plate LXIX, fig. 3. 



? Amhlyopus roseus, Cuv. and Val. xii, p. 164. 



B. v, D. 6 | 33, P. 50, V. 1/5. A. 32, C. 17. 



Length of head 8J, of caudal 4i, height of body 20| in the total length. Eyes — small but distinct in the 

 anterior third of the head. Greatest width of head equals its height and nearly half its length. Body very 

 compressed. Lower jaw the longer, but not so distinctly forming the front of the head as in the other species, 

 the maxdla reaches to about 1 diameter behind the hind edge of the eye. Some small barbels below the 

 symphysis of the lower jaw. Teeth — the outer row in the upper jaw consisting of about twelve curved canines 

 not so large as those in the lower jaw, where there exists the same number : two or three rows of fine pointed 

 teeth in either jaw behind the canines : and two posterior canines above the symphysis of the lower jaw. Fins — 

 vertical ones not enveloped in s kin , the dorsal continuous with the caudal, its height rather exceeds that of the 

 body. Pectoral 2/3 as long as the head, with about 50 branched rays : ventral slightly longer. Caudal 

 lanceolate. Scales — a few rudimentary ones present on the last part of the body. Colours — of a general roseate 

 tinge, fins colourless except the caudal which is dark with a light outer edge. 



The proportions of this fish, except as regards the pectoral fin, agree with A. roseus, C.V. which came 

 from Bombay, it however is said to have D. 6 | 43, A. 1 | 41, and the pectoral 81 times in the total length. 



Habitat. — Sind, where the specimen figured (7^ inches long) was captured. 



Genus, 11 — Tetpauchen, Cuv. and Val. 



Branchiostegals four : pseudobranchicB. A deep blind cavity above the opercle, and which is not in communica- 

 tion with that of the branchial. Body elongated and compressed : head likewise compressed. Eyes lateral, min 

 not elevated. Teeth in a band : no canines. Dorsal fin single, the anterior portion consisting of six spines, the soft 

 with many rays, as has also the anal, whilst both are confluent with the caudal : ventrals with four or five rays, united 

 forming a disk. Scales small, cycloid. 



* In some young specimens from Madras I find rudimentary barbels. 



