204 



COLE. 



[VOL. II. 



at first, it soon gets out of direct orientation and then turns 

 around the shortest way, as in the first case. 



Pallene shows even a more marked positive phototaxis than 

 Anoplodactylus. If the light comes in nearly horizontally, it 

 usually tilts over to an angle of about ninety degrees, or until 

 the body is nearly perpendicular to the bottom, and moves 

 quickly towards the light by a rapid movement of the legs. 

 Pallene is much the better swimmer of the two and seldom 

 moves along the bottom in the manner described for Anoplo- 

 dactylus. So far as I could make out, the leg movement is 

 exactly similar in the two species. 



ju_~ 



Transfer of the Eggs. 



During the latter half of August the males of Anoplodac- 

 tylus may often be found bearing the egg-masses upon their 

 ovigerous legs. As a general rule, among Pycnogonids the 

 eggs are gathered into little spherical or spheroidal balls strung 

 along on the ovigerous legs, but in Anoplodactylus they are in 

 more or less irregular masses through which both of the ovig- 



erous legs pass (Fig. 4) ; 

 their white color in this 

 form, clearly offset by the 

 dark body of the animal, 

 gives them much the ap- 

 pearance of little bunches 

 of wet cotton. Sars 1 says 

 of the genus, evidently 

 basing the statement on 

 A. pctiolatus, that there 

 are " several globular egg- 

 masses attached to the 



**~j 



IM.,. J--Mul, A lent,,* from right side : walking legs I false legS in tllC male," and 



'cd. Reference letters as in Fig, i. 



1 



j n ^Jg fjg ure o f this Species 



there are five such masses shown on the right ovigerous leg. 

 It is possible that in A. Icntits the irregular masses may later 



1 Sars, ('.. (>., " Pycnogonidea," The Norwegian North-Atlantic Expedition, 

 1876-78. Zoology, vol. vi, p. 25, and I'l. II, Fig. 2 />. 1891. 



