ADDENDA, VOL. IV 



VOL. IV. 



I'ain. GOBIIU^'. 



1'. GOBIUS, Alt. 



?,a. GOBIUS THUMA.SI, sp. n. 



Body feebly cci in pressed. Depth of Ijody 4^ times in totiil lenj^tli, 

 length of head 4 times. Head 1[, tin-.es as long as broad, scaly above 

 from between the eyes, naked on the sides; snout rounded, shorter tliau 

 eye, which is 3^ to of times in length of head ; interorbital space very 

 narrow; jaws equal in front; mouth extending to below anterior border 

 of eye ; teeth rather small, in a narrow band. Dorsals ^'l 9, well 

 separated from each other ; third simple ray somewhat i)roduced, a 



Fi;:. 1!'.'). 



^ x^SSs 



^i^ 



Golihts fhoijiafi. 

 Type. X If 



litde shorter than liead. Anal I 0, opposite second dorsal. Pectoral 

 a little sh(ntcr than head. Neutral not reaching vent, with a ratiicr 

 narrow l)asal meinl)rane. Caudal rounded-subacumiiuxte, a.s long a.s 

 head. Caudal peduncle 1 h limes as long as deep. Scales feet)lv ciliated, 

 2u-!^7 in liHiLjitudiiial series, 8 in transverse series. Pale olive-brown, 

 with small dark Inown spots and a lateral series of large blackish 

 spots ; a large black spot above base of pectoral ; blackish wavy lines 

 on the cheek and gill-cover ; a black cre<centic bnud from eye to eye 

 across the gular region. 



Total length "lO millim. 



Sierra Leone. 

 1-2. Typos. N. Sli-rlio .listrict. X. W. Tliuiiiis. Es.j. (P.). 



Agrees with 0. dewatdii in the large scales; differs in tlie position of 

 the mouth, the absence of canine teeth, the naked gill-cover, and llie 

 larger eye. 



