PY( IDA 



ite the two families lias been the Eact that Pallenopsis which is 

 us /'ill,/!,, shows, by the formation of its palps that it will not do to 

 upon the presence or absence of these organs. 



I. Subfam. Nymphonini. 



Palpi expleti, pluries partiti. 



Palps will developed, with nunc joints. 



i. Gen. Nymphon (Fabr. i 7' >4). 



Nymphon, Wilson, Syn. Pycnog. New-EngL, 1S78. 

 Chaetonymphon, Sars, Pygnog. bur. arct, 1888, pro parte. 

 Boreonymphon, Sars, ibid. 



The genus Nymphon with the limits which have- been given to it here by Wilson, includes 



•eat number of species that might naturally be distributed to several groups, but the differences 



m to me to be too small to justify the division into more genera, or the separating of more or 



fewer species of the genus Nymphon of Wilson. The genera Clue to nymphon and Boreonymphon, 



for inst, which have been separated by Sars, I.e. p. 352 and 354, seem to ine too little characteristic 



e taken as more than groups of species, and with regard to N.macronyx which has been referred 



'hatonymphon, I think it even doubtful, if it might not more easily be placed among the species 



thai - -till keeps as the genus Nymphon. 



The species of the genus, brought home by the Ingolf, may be arranged as shown in the 

 following analytical table. 

 a. The trunk naked. 



(The fingers of the cliche li. e. both the immovable and the movable finger) dentate. 

 The auxiliary claws well developed). 

 culiferous tubercle pointed. 



b. b. The oculiferous tubercle truncate. 



c. The first tarsal joint shorter than the second. 



c. c. The first tarsal joint as long, or longer than the si 



d. The two last joints of the palps short and thick. 

 (The claws short, powerful. 

 The fingers of the cliche short). 



d. d. The two last joints of the palps long, thin, 

 e. The claws short, powerful. 



1. X. grossipes Fabr. 



2. X. Sluiteri Hock. 



;. X. brevitarse Kr. 



4. X. serratum < '■. ' >. . s 



5. X. megalops t '.. < >. S 



6. X. Sarsii n. sp. 



7. X. Hoekii 11. sp. 



8. X. Stroemii Kr. 



