293 



bas (1879) described already a Pollene longiceps from Japan, the males 

 of whicb are furnisbed witb rudirnentary two-jointed palpi. So 

 the genus Pollene furnishes a very striking example of atavism ; 

 of the three pairs of appendages which originally belong to the 

 cephalic part of the body, one, two or even three are lost in the 

 adult state of the species of several genera. However they are 

 not always quite lost in all the species of such a genus : there 

 are known already species of Colossendeis with mandibles (C. gra- 

 cilis and C. angusta) and to the same category of facts belongs, 

 I think, the occurrence of species of the genus Pollene with more 

 or less well-developed palps in the male sex. 



2. Anoplodactylus neglecta, n. sp. 



(Kg. 7-10). 



I have received a microscopical preparation of a Pycnogonid, 

 dredged, as the label states, in 1600 fathoms between Prince 

 Edwards and the Crozet Islauds. During the cruise of the Challenger 

 tïvo dredgings only were done between these islands: the one 

 (Station 146) at a depth of 1375, the other (147) at 1600 

 fathoms. The little Pycnogonid, a microscopical preparation of 

 which was made during the cruise (by Willemoes-Suhm ?), there- 

 fore must have been taken at Station 147. 



It belongs to the genus Anoplodactylus, Wilson. Of this genus, 

 which was established by Wilson *) for the reception of those 

 Pycnogonids whicb have the cephalic segment extending forward 

 over the proboscis, and which have no palps and six-jointed ovigerous 

 legs in' the male sex only, a few species only are known. They 

 are the following : 



Anoplodactylus lentus , Wilson. Vineyard Sound, common 

 between tide-marks. 

 » virescens, Hodge sp. French and English coasts 



between tide-marks. 



1) Wilson, E. B., in : American Journal of Science of Arts. XV. 1878. p, 200. 



