50 Mr. G. A. Boulenger on new 



From snout to vent 27 mm. 



Two specimens from the Arfak Mountains at an altitude of 

 8000 feet. 



Hylella longicrus. 



Tongue subcircular^ sliglitly nicked. Head as broad as 

 long; snout rounded, scarcely prominent, shorter than orbit; 

 canthus rostralis distinct ; loreal region oblique, concave ; 

 interovbital space broader than the upper eyelid ; tympanum 

 distinct, not quite half the diameter of the eye. Outer 

 fingers half-webbed ; toes nearly entirely webbed ; disks of 

 fingers as large as the tympanum ; subarticular tubercles 

 very feeble. The tibio-tarsal articulation reaches considerably 

 beyond the tip of the snout ; tibia three-fifths length of head 

 and body. Skin smooth or finely areolate above ; belly and 

 base of lower surface of thighs granulate ; throat smooth ; no 

 fold across the chest. Green above ; flanks, upper surface 

 of thighs, and hands and feet colourless, with green dots or 

 reticulation ; a white band from below the eye to the angle 

 of the mouth ; throat and belly white. 



From snout to vent 33 millim. 



Two female specimens — one from Fak Fak, the other from 

 Wendessi. 



VIII. — Further Descriptions of neio Freshioater Fishes 

 discovered by Dr. \V. J. Ansorge in Portuguese Guinea. 

 By G. A. Boulenger, F.R.S. 



(Published by permission of the Trustees of the British Museum.) 



Before leaving Portuguese Guinea Dr. Ansorge has sent to 

 the British Museum a further large series of fishes obtained 

 at or near Batata, among which are representatives of two 

 new species to be added to the six described in the April 

 number of these ' Annals' (vol. vii. p. 373). 



Synodontis annectens. 



Intermediate between S. sorex, Gthr., and 8. clarias, L. 

 Agreeing with the former in the length of the snout, which 

 is more than half the length of the head and three times the 

 diameter of the eye in the adult, with the latter in the 

 maxillary barbel. Further differs from S. clarias in having 

 the spine of the dorsal fin perfectly smooth in front and the 

 serration on the inner side of the pectoral spine much more 

 feeble in the adult. 



