42 



G0I3I1D,E. 



1. GOBIOIDES ANSORGII. 

 Boulcnrr. Ann. .t M:ig. N. H. (8) iv. 1009, p. 4:51. 



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

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

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

 series of sensory papilliB 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 millim. 



11. Mansoa (tidal), Portuguese Guinea. 

 1-;'.. Typos. Port Mansoa. Dr. W. .1. Ansorge ((.'.). 



Fig. 24. 



Gohioidt'S (nisoi-fjii. 

 Type. |. 



:.. SICYDIUM. 

 Cuv. & Val. Hist. Pois.*. xil. p. 167 (18:57) ; Giintli. Cat. Fish. iii. p. 01 (18G1) ; 



Ogilvie-Grant, Proc. Zool. Soc 1884. p. \:}:\. 

 Siojopterus, Gill, Proc. Ac. Philad. 18G0, p. 101. 

 ("oti/Iojms, Guichen. in Maillard, Notes Reunion, ii. Add. t', p. (1802). 



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

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

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

 the anterior with 5 to 7 flexible spines, the posterior witli 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, witliin the tropics; breeding in the sea. 

 Five species in Africa. 



