( 242 ) 



coup plus longue que la troisième. Le punctatus de M. Day 

 est une espèce a 42 écailles dans la ligne laterale et a pecto- 

 rales atteignant les rayons postérieurs de Tanale. Elle me 

 parait être voisine de 1'acinaces. 



Biapterus pkilippinus Blkr. 



Descriptio Güntheriana sequens. 



// The height of the body is contained twice and two-fifths 

 in the total length (without caudal), the length of the head 

 twice and a fourth ; the length of the caudal is two-ninths 

 of the total. The diameter of the eye is one-third of the 

 length of the head, equal to the width of the interorbital 

 space, and more than the extent of the snout. The groove 

 for the processes of the intermaxillaries is rounded behind, 

 naked, and extends beyond the vertical from the anterior mar- 

 gin of the eye. The free portion of the tail is longer than 

 high. The scaly sheeth of the dorsal is very high. The second 

 dorsal spine elongate, its length being two thirds of the height 

 of the body. The second anal spine is much stronger but 

 scarcely shorter than the third, and not quite half as long as 

 the head; the scaly sheath covers the posterior anal rays en- 

 tirely. Pectoral very long, extending to the second anal spine. 

 Silvery; each dorsal ray and the posterior spines with a blac- 

 kish dot near the base. D. 9/10. A. 3/7. Lin. lat. 48. Lin. 

 transv. 6/1 2." 



Syn. Gerres pkilippinus Giinth., Oatal. Pish. TV p. 258. 

 Hab. Tnsul. Philippin. 

 Longit. //three and a half inches." 



Diapterus acinaces Blkr. 



Diapt. corpore oblongo compresso, altitudine 2^ fere in ejus 

 longitudine absque-, 3| fere in ejus longitudine cum pinna 

 caudali ; latitudine corporis 2 \ ad 2 \ in ejus altitudine ; ca- 

 pite acuto 3| eire. in longitudine corporis absque-, 4£ ad 

 4*^ in longitudine corporis cum pinna caudali; altitudine 

 capitis 1 eire, latitudine capitis 1| eire. in ejus longitudine; 



