SICYDIUM. 4-3 



Body entirely scaly ; about GO scales in longitudinal series. Blackish 

 brown. 



Total length 110 millira. 



Reunion, Mascarene Islands. — Type in Paris Museum. 



4. SICYDIUM LAGOCEPHALUM. 



Gobio, Koelreuter, Nov. Acta Petropol. ix. 1764, p. 428, pi. ix. figs. 3 & 4. 

 Gobius lagocepludus, Pall. Spicil. Zool. viil. p. 14, pi. ii. fins. 6 it 7 (1774). 

 Sicydium lagocrphalum, Guv. & Val. Hist. Poiss. xii. p. 174 v 1 8 3 7 ) ; Giinth. Cat. 



Fish. iii. p. 92 (1861) ; Kner, Novara, Fische, p. 181 (1869) ; Ogilvie-Grant,, 



Proc. Zool. Soc. 1884, p. 161. 

 Sicyopterus lagocephalus, Bleek. Verh. Ak. Amsterd. xviii. 1879, p. 17. 



Depth of body 5 to 5| times in total length, length of head 4f to 

 5 times. Head as broad as deep ; eye 5 to 6 times in length of head, 

 1^ times in interoibital width ; mouth extending to below centre of 

 eye ; movable labial teeth tricuspid ; anterior mandibular teeth much 

 larger than the others, curved, canine-like. Dorsals VI, I 11 ; third 

 and fourth rays of first dorsal produced into short filaments. Anal 

 I 10. Pectoral as long as head. Body entirely scaly ; 60-65 scales in 

 longitudinal series. Brown, uniform or clouded with darker; second 

 dorsal with dark dots, anal with a black and white margin. 



Total length 90 millim. 



Mauritius and Reunion, Mascarene Islands ; Xicobar Islands (1). 



1. Ad. Reunion. Paris Museum (P.). 



2. Ad. ? 



5. SICYDIUM PARVIPINNIS. 



Cotylopus parvipinnis, Guichen. in Maillard, Notas Reunion, ii. Add. C, p. 11 



(1862). 

 Sieydium parvipinne, Ogilvie-Grant, Proc. Zool. Soc. 1884, p. 170. 



Depth of body about 6 times in total length. Eye double interoibital 

 width ; mouth not extending to below anterior border of eye. Dorsals 

 VII, I 10; rays of first dorsal not produced. Anal I 10. Pectoral as 

 long as head. Belly naked. Yellow, each scale bordered with brown; 

 a black spot on the first dorsal ; anal edged with black. 



Total length 110 millim. 



Reunion, Mascarene Islands. — Type in Paris Museum. 



