Pedipalpi, Ricinulei, and Opiliones. 3! 



limbs are more scattered, and the distal portion of the tibial 

 part of the palp is less thickened. As the male C. Aizelii is 

 unknown, it is at present impossible to point the secondary 

 sexual differences between the males of the two species. 



Occurrence. Portuguese Guinea (near lat. 12 N.), at 

 two places: Bolama, June December 1899, m &ny specimens; 

 Rio Cassine, January April 1900, numerous specimens. 



ORDER OPILIONES 



This order comprises three sub-orders, viz. Palpatores > 

 I/aniatores, and Cyphophthalmi. The collection contains a 

 rich material of the lyaniatores, but with the consent of Dr. 

 Gestro it has been handed over to a colleague. The small but 

 interesting material of the two other sub-orders is dealt with 

 on the following pages. 



Sub-Order O. Palpatores. 



It is an interesting and curious fact that Mr. Fea, who was a 

 most excellent collector, has secured only two specimens du- 

 ring his voyages in West Africa; animals of this sub-order 

 imist consequently be very scarce in the countries investigated. 

 Both animals are fortunately adult males; they belong to two- 

 different genera, and both belong to the family Phalangioidse. 

 A few years ago Dr. C. Fr. Roewer published the two first 

 parts of his monograph of the Palpatores in: Abhandlungen 

 aus dem Gebiete der Naturwiss. heraug. vom Naturwiss. Ver- 

 ein in Hamburg. The second part of this work has the title: 

 Revision der Opiliones Palpatores (= Op. Plagiostethi), II 

 Teil; Familie der Phalangiidee (1. c. Vol. XX, I, 1912); it deals 



