GOBI US. 



39 



interorbital region narrow ; jaws equal in front ; mouth extending 

 to below posterior border of eye ; teeth in a band, outer largest. 

 Dorsals VI, I 11, well separated from each other; posterior rays 

 longest, as long as head. Anal I 11, opposite to second dorsal. Pectoral 

 as long as head, with filamentous upper rays. Ventral nearly reaching 

 vent. Caudal pointed, 1| times as long as head. Caudal peduncle 

 1^ times as long as deep. Scales ciliated, 50 in longitudinal series, 12 

 in transverse series between dorsal and anal. Pinkish yellow, head 

 purplish ; 14 or 15 purplish-black narrow bars on each side of the body ; 

 dorsal and caudal purplish black, anal purple. 



Total length 145 millim. 



Sambirano R., N.W. Madagascar. — Type in Leyden Museum. 



Fig. 21. 



Ooblus polyzona. 

 Type, after Bleeker (7. c). ^. 



21. GOBIUS OCCIDENTALIS. 



Gohius (Oxyurichthys) occidentalis, Bouleng. Ann. & Mag. X. H. (8) iv. 1900, 

 p. 131. 



Body strongly compressed ; depth of body h\ times in total length, 

 length of head 5 times. Head twice as long as broad ; snout rounded, 

 as long as eye, which is 4 times in length of head ; interorbital region 

 very narrow, with two strong ridges; jaws equal in front; mouth 

 extending to below centre of eye ; teeth in a single series ; no canines ; 

 cheek and gill-cover scaly. Dorsals VI, I 13, separated by a mere 

 notch; third simple ray longest, as long as head. Anal 1 14. Pectoral 

 as long as head. Ventral terminating at a great distance from vent, with 

 a broad basal membrane, each side of which is pointed and produced. 

 Caudal acutely pointed, twice as long as head. Caudal peduncle as long 

 as deep. Scales ciliated, 60-63 in longitudinal series, 12-13 in trans- 



