COLE : PYCNOGONIDA. 191 



preserved material gave an appearance similar to that described by Hoek. 

 Whereas Hoek describes his specimens as being " sjjrinkled over " with these 

 bodies, they have in the present instance a peculiarly regular arrangement, a pair 

 being attached close together near the proximal end of the femur of three differ- 

 ent legs, viz., the second and third legs of the right side and the third left leg 

 (pi. 3, fig. 11). This arrangement would appear to suggest either that it is diffi- 

 cult for the animal to reach this particular part of the leg in order to clean it, in 

 case the capsuks are not to be considered as pertaining to the species, or else 

 that this is the regular position for the attachment of the egg capsules of the 

 pycnogonid itself. It is a singular fact that the external egg masses appear to 

 be unknown in this genus, and Hoek discusses the possibility that these capsules 

 may be the form they take in these animals. He considers this view as improb- 

 able, however, and calls attention to the fact that they occur on both sexes, 

 whereas it is the almost universal rule among the Pycnogonida (a single known 

 exceptional instance) that the eggs are carried by the male upon his ovigers. 



