42 GOBIID.E. 



1. GOBIOIDES ANSORGII. 

 Boulencr. Ann. & Mag. X. H. (8) iv. 1009, p. 431. 



Depth of body 8 to 10 times in total length, length of head 6 to 

 7 times. Snout i length of head; eye very small; lower jaw pro- 

 minent ; maxillary extending to beyond vertical of eye ; very regular 

 series of sensory papilla? on the head. Dorsal VI-VII 19-21, rays 

 subequal, f length of head. Caudal nearly twice as long as head, 

 acutely pointed. Scales very small. Head and back greyish, the rest 

 of the body yellowish ; fins white. 



Total length 280 miliim. 



11. Mansoa (tidal), Portuguese Guinea. 

 1-3. T\'pos. Port ilansoa. Dr. W. J. Ansorgc (C). 



Fig. 24. 



Gohioides ansoir/ii. 

 Type. I 



5. SICYDIUM. 

 Cuv. & Val. Hist. Poiss. xli. p. 167 (1837) ; Giintli. Cat. Fish. iii. p. 91 (1861) ; 



Ogilvie- Grant, Proc. Zool. Soc 1884, p. 153. 

 Sici/opterus, Gill, Proc. Ac. Philad. 1860, p. 101. 

 Cotylopis, Guichen. in Maillard, Notes Reunion, ii. Add. C, p. 9 (1862). 



Small, movable, slender labial teeth in both jaws, attached to the bone 

 by ligament, those on the lower lip directed horizontally outwards ; 

 lower jaw with a series of widely set conical teeth. Two dorsal fins, 

 the anterior with 5 to 7 flexible spines, the posterior with one simple 

 and 10 to 12 branched rays. Anal similar to second dorsal. Ventral 

 fins united into a cup-shaped disk, more or less adherent to the belly. 

 Scales small, strongly ciliated. 



Fresh waters near the sea, within the tropics ; breeding in the sea. 

 Five species in Africa. 



