1901.] NATURAL SCIENCES OF PHILADELPHIA. 167 



The ovigerous male of Station 39 agrees iu all esseutial points 

 with P. hispida as figured by Wilson. The two females, however, 

 show the chelaj of the mandibles (antennte) as figured by Wilson 

 for P. discoldea (1880, fig. 106), and the rostrum is more obtuse 

 than in the male, which is another diagnostic character assigned 

 to discoldea. In the shape of the end of the abdomen I do not 

 find any difference; all three individuals have it obtuse, and not 

 poiuted and slightly bifid. 



In my opinion P. hispida is not different from discoldea, but 

 represents merely the male sex. 



Distribution. — Maine, Grand JNlanau (12-55 fathoms), South 

 Greenland, North Norway, Lapland, White Sea. 



In conclusion I add here a list of species recorded pi'eviously 

 from the northern parts of Baffin Bay and Smith Sound, but not 

 found by our expedition iu the same latitudes: 



1. Balanus crenatus Brug. Grinnell Land: Discovery Bay 



(Miers, Jouni. Linn. Soc. ZooL, Vol. 15, 1881, p. 73). 



2. Balanus balanoldes (L. ). Port Foulke (Stimpson) (possibly 



seen by the present writer at Foulke Fjord). 



3. Orchomenella nilnuta {Hr.). North Greenland: Cape Dudley 



Digges, and Ellesmere Laud: Cape Faraday (Ohlin). 



4. Anonyx affinls Ohl. Cape Dudley Digges (Ohlin). 



5. Hoplonyx cicada (Fabr. ) = Anomjx gulosus Kr. Grinnell 



Land: Discovery Bay (Miers). 



6. Ampellsca eschrlchtl 'Kr. North Greenland: Murchison Sound 



(Ohlin). 



7. Haploops tublcola Lilj. North Greenland: Cape Dudley 



Digges (Ohlin). 



8. Acanthostephela malmgreni (Goes). Murchison Sound 



(Ohlin). 



9. Euslrus cuspldatus K.Y. Grinnell Land: Franklin Pierce 



Bay (Miers). 



10. Ap her usa glacial Is (Hans.). North Greenland: Wolstenholme 



Sound (Ohlin). 



11. Paratylus smlttl (Goes). Murchison Sound (Ohlin). 



12. Amathila homarl (Fabr.). North Greenland Cape Dudley 



Digges, Northumberland Island; Ellesmere Land: Cape 

 Faraday (Ohlin). 



13. Neohela momtrosa (Boeck). North Greenland: Murchison 



Sound (Ohlin). 



14. Caprella monocera Sars. Cape Dudley Digges (Ohlin). 



