260 Mr. G. A. Boulengcr on 



broader and shorter terminal pieces, and larger spines on the 

 edge. At the ventral edp^e of this series the terminal pieces 

 are somewhat shorter. This form of foot is represented in 

 the seventh (PL VI. %. 2). 



The tenth foot shows a notable increase in the size of the 

 ceratophore of the dorsal cirrus, and whilst the foot is propor- 

 tionally shortei", the dorsal and ventral lobas are larger and 

 longer. On the eleventh foot the ceratojjhore has nearly- 

 doubled its length, so that it is not much shorter than the 

 long — almost filiform — cirrus projecting from its tip. The 

 dorsal and ventral lobes have also increased in size. 



At the fourteenth foot (PI. VI. fig. 3) the great development 

 of the ceratophore of the dorsal cirrus is evident, the slender 

 cirrus projecting from a basal region which is longer tlian 

 itself. Both specimens agree in respect to this region, and, 

 as no sexual elements are visible, it would appear to hi un- 

 connected with the ripe condition, and, so far as known, with 

 sex ; yet it is well to wait for more complete specimens before 

 deciding the question of species. 



This genus was established by Malmgren * in 1867 for a 

 species obtained by the distinguished Swedish zoologist, 

 Sven Lov6n, on the shores of his country. 



It has not been thought necessary at present to do more 

 than indicate the differences between these imperfect examples 

 and the European form. 



7. On the Norwegian Nereid?e collected Inj 

 Canon Norman, D.C.L. <SfC. 

 Three common species were dredged, viz., Nereis pelag lea, 

 N. Dumerilii, and A^. diversicolor. 



EXPLANATION OF PLATE VI. 



Fig. L Head and anterior segments of Ceratocephala near Jjoveni, Malm- 

 gren, Gulf of St. Lawrence, Canada. Enlarged. 

 Fig. 2. Seventh foot of the foregoing. Magnified. 

 Fig. 3. Fourteenth foot. Similarly magnitied. 

 Fig. 4. Bristle of Ceratocephala. X Zeiss oc. 2, obj, D, 



XXXVIII.— L/si of the Fishes collected hij Mr. W. L. S. Loat 

 at Gondokoro. By G. A. Boulengek, F.R.S. 



■^rHE Survey of the Fishes of the Nile, undertaken by the 



]']gyptian Government in response to the appeal of the late 



Dr. John Anderson in 1899, has recently been extended into 



* ' Annulata Polychret:!,' p. 170. 



