Studies on Arthropoda. I. 



sub-order Op. Cyphophthalmi. As Tartarides, Ricinulei (Cryp- 

 tostemma) and Op. Cyphophthalmi are scarce even in the largest 

 Museums of the world, it is easily seen that the collection is 

 important out of all proportion to the somewhat low number 

 of species; the presence of an unknown kind of larval stage 

 of the Ricinulei highly increases its value. Before concluding 

 these remarks, I may beg Dr. R. Gestro to accept my sincere 

 thanks for offering me the material and for his patience as to 

 the long delay. 



ORDER PEDIPALPI 



A. Sub-order Amblypygi. 



In his monograph (Revision der Tarentuliden Fabr., 

 1895) K. Kraepelin accepted three sub-families, and in 1902 

 R. I. Pocock elevated them to the rank of families. Only one 

 of these families, viz. the Phrynidse, was hitherto known from 

 Africa, and a single well-known form is represented in the col- 

 lection. But this contains besides two species of the family 

 Charontidae, which hitherto was known only from the Indo- 

 Australian region and the Galapagos Islands. 



It may be inserted that I am inclined to consider the second 

 of the two long joints in the mandibular palps as corresponding 

 to patella plus tibia in Araneae and Pedipalpi Uropygi; in the 

 descriptions I can therefore follow Kraepelin who named it 

 tibia. 



Titanodamon medius Herbst. 



Kraepelin mentioned three varieties, viz. typicus Kraep., 

 tibialis Simon, and Johnstoni Pocock; the two last-named va- 

 rieties had been established as separate species by the authors 



