On a Xfw Zealand Ainph'ipod. 569 



LXXIIT. — Description of a nno Fish of the Genua Clarias 

 from Uganda, liy G. A. BOULENGER, F.Il.S. 



Clarias Werneri. 



Deplli of body C)\ to 8 times in total length, lenf^th of head 

 4.\ to 5 times. Head about once and a half as long as broad, 

 smooth or very feebly granulate above ; occipital process 

 angular; occipital fontanelle as large as or a little smaller 

 than the frontal, and j)artlyon the occipital process ; eye very 

 t^niall, 2 to 3 times in length of snout, 5 to G times in inter- 

 orbital width ; vomerine teeth granular, forming a crescentic 

 band which is as broad as or a little narrower than the band 

 of pra.'maxilhiry teeth. Nasal barbel nearly once to once and 

 a half length of head ; maxillary barbel once and I to twice 

 length of head, reaching extremity of pectoral fin or beyond. 

 16 to 18 gill-rakers on anterior arch. Dorsal 82-91, its 

 distance from the occijjital process nearly ;■( length of head. 

 Anal G8-72. 13oth dorsal and anal in contact with or very 

 narrowly sejiarated from the caudal. Pectoral nearly half 

 length of head, the spine very feebly serrated on the outer 

 border and jj' the length of the fin. Ventral once and vj to 

 once and ^ as distant from root of caudal as from end of 

 snout. Blackish l)rown above, lighter brown beneath. 



Total length 230 mm. 



Found in a pond two hours to the east of Gondokoro by 

 Dr. F. ^^"erner (one specimen presented by him to the British 

 Museum in 1905) and in Lake Victoria (at Bunjako, Buganga, 

 and Alunyonyo) by Mr. E. Degen. 



LXXIV. — Note on a New Zealand Amphipod helonginrj to the 

 Genus Seba. By CnAHLES CiiiLTON, M.A., D.Sc, F.L.S., 

 Professor of Biology, Canterbury College, New Zealand. 



[The subjoined communication was sent to me by Prof. 

 Chilton for publication. ISince receiving it I have carefully 

 compared my female specimens and jMons. Chevreux^s descrip- 

 tions and figures with i\\o?.coi S.Saundersii'm the 'Challenger' 

 lleport. As regards the former, 1 can find no differences of 

 any value, and 1 agree with Pr^f. Chilton that those given 

 by Jilons. Chevreux cannot be relied on *. 1 have therefore 

 come to the following conclusions: — 



* There is, however, a ninrked difl'erciice in the niniidibtilar pnljis: in 

 S. Sau7iderfii (and in ^. antantica) the third joint is much lonj^er tlian 

 the first, while in S. annntd it is said to be 8ht)rter. As the la^t-namcd 

 species was taken ic the Ciulf of Ciascony, it is probably di-tiuct. 



