FAMILY, XI— POLYNEMIDiE. 177 



snout, and 3 apart. Height of head equals its length excluding the snout, its width equals its postorhital 

 length. Snout overhanging the mouth. The maxilla extends to upwards of two diameters behind the posterior 

 edge of the orhit. _ Preopercle serrated and having a soft, produced, and rounded, angle : the other opercles 

 entire. A small spine pn the shoulder. Teeth — vilHform in jaws, vomer, and palate. ii%s— spines of first dorsal 

 W€!ak, the second one slightly the longest : the height of the first ray of the second dorsal equals the length of the 

 base of the fin which is highest anteriorly, its upper edge concave. Pectoral rays undivided, the fin has seven 

 free rays below its base, the three superior being the longest, strongest, and about twice the length of the fish. . 

 Ventral does not quite reach the anal, the latter fin commencing under the second dorsal and being of the same 

 height, its lower edge emarginate. Caudal deeply forked, upper lobe the longer. Scales — ctenoid, in regular 

 horizontal rows, covering the body and head, with fine ones over the vertical fins. Lat&raUine—iovmB a gradual 

 curve, and becomes lost at the centre of the base of the caudal fin. Least depth of the free portion of the tail 

 equals 2/5 of the length of the head. Air-vessel — absent. Colours — generally golden, with a shade of gray 

 along the back, and the dorsal fins also stained grayish with a slight tiuge of the same shade, eo are also the 

 caudal, the pectoral, and upper pectoral appendages. 



Buchanan observes-: " Those who ofiaciate in the temple of Sib are called Tapasi in the vulgar dialect, 

 and Ta^aswi .in Sangskritta, that is to say penitents. They ought not to shave, on which account a fish called 

 Mwngoe fish by the English of Calcutta, which has long fibres proceeding from near its head, is called by the 

 same name." 



Eahitat—lnAmn seas, Bay of Bengal at least as low as Coconada, also along the coasts of Burma 

 to the Malay Archipelago, entering rivers for spawning purposes, and generally duriug the S. W. monsoon 

 and the cold months. It is considered a great luxury for the table and commences to be taken in 

 numbers about June. It attains 9 inches in length. Ham. Buch. observes : " I have, I think, observed three 

 species, included under this name (Mangoe fish), and Dr. Eussell describes a fourth : but all have exactly the 

 same qualities and manners, nor am I sure that the slight difi"erences iu the number of rays which I observed 

 may not be accidental varieties, rather marking individual than specific differences" (p. 229), 



2. Polynemus heptadactylus, Plate XLII, fig. 5. 



Cuv. and Val. iii, p. 390 ; Bleeker, Perc. p. 60 ; Cantor, Catal. p. 34 ; Giinther, Catal. ii, p. 321 ; Day, 

 Mshes of Malabar, p. 59. 



B. vii, D. 8 I j^It^, P. 15+vii, V. 1/6, A. -rr-Ta, C. 19, L. 1. 50-52, L. tr. 5/11, Csec. pyl. 4. 



Length of head 1/5, of caudal 1/4, height of body 1/4 of the total length. Eyes — diameter 3f in the 

 length of head, 1/2 a diameter from end of snout, and 1 apart. Height of the head equals its length excluding 

 the snout, the width of the head nearly equals half its length. , The maxilla reaches to 1/2 a diameter behind 

 the posterior edge of the eye : interorbital space nearly flat. Preopercle strongly serrated, having a well 

 developed spine just above its angle, which is rounded and produced. A spine on shoulder at the commence- 

 ment of the lateral-line. Teeth — viUiform in jaws, vomer, and palate. Fins — first dorsal spine short, the third 

 the longest and equal to 2/3 the height of the body, the last scarcely one-third of its height ; second dorsal 

 highest anteriorly where it equals 3/4 of that of the body, upper edge of the fin concave. Pectoral rays 

 unhranched, the length of the fin equals 3/4 of the height of the body, its appendages reach to the base of the 

 anal, the upper being the longest. Ventral reaches the vent. Anal highest anteriorly where it equals the first 

 dorsal, its lower edge straight. Caudal deeply lobed. Air-vessel— absent. Free portion of the taU in its least 

 depth equals If in the length of the head. Golowrs — golden, pectoral nearly black : edge of first dorsal, upper 

 edge of second dorsal, margins of caudal, lower half of the anal and tip of ventral also black. 



Habitat. — Seas of India to the Malay Archipelago, attaining at least 6 inches in length. 



3. Polynemus xanthonemus. 



Cuv. and Val. vii, p. 517 ; Eichardson, Ich. China, p. 219 ; Giinther, Catal. ii, p. 325. 



B. vii, D. 8 I ^, P. 15+vi, A. TTjl-^, Case. pyl. 12. 



It is observed that this fish more resembles P. sextwrius than P. sexfilis. Fins — its six free pectoral 

 rays extend beyond the end of the ventral but are shorter than in P. hexwnerrms, iu which they reach to the end 

 of the body. Although the caudal lobes are not more elongated than in P. sextarius (1/5 of the total length), 

 the fin is more deeply cleft. Air-vessel — absent. Golows — back greenish, sides and abdomen silvery : the fins 

 yellow with a black border, the free rays are the same colour as the fins. 



Sir John Richardson observes of Reeves' figure, that it "has a zigzag blackish line above the base of the 

 pctoral, which is not noticed in the ' Histoire des Poissonsi' but in other respects it agrees with the description, 

 in that work." 



Habitat. — Seas of India to China, attaining at le^t 6 inches in length. I have not recognised this 

 species in India. 



4. Polynemus sextarius, Plate XLII, fig. 6. 



• Bloch. Schn. p. 18, t. iv ; Cuv. and Val. iii, p. 388, and vii, p. 614 ; Bleeker, Perc. p. 59 ; Cantor, Catal. 

 p. 32; Giinther, Catal. ii, p. 326; -Day, Fish. Malabar, p. 60. 



2 A 



