142 
Purported New Species, etc. 
( b ) Lice derived from apes and monkeys. 
Pediculus schaffi Fahrenholz 1910. 
This form was described by Fahrenholz, 1910, p. 57, PL III, figs. 2, 6, and 
text-fig. 1 (eggs); host: Simia troglodytes. The species was condemned and 
“regarded provisionally” for reasons specified by me ( Parasitology , xi. 336-7) 
as = P. humanus race schaffi (Fahr.). I see no reason to change my opinion. 
Pediculus friedenthali Fahrenholz 1916. 
The author states (x. 1916, p. 88) that this form occurs on Hylobates 
mulleri. He only describes the $ which “much resembles the head-louse of 
man.” After dwelling on trivial points of detail he adds: 
“Sternum fehlt#.. .grosste Breite im V Segment* ...Letztes Segment des ? 
breiter als lang* so dass die Gonopoden in den Einschnitt desselben hinein- 
ragen. Gonopoden sind nach hinten gerichtet und stehen der Form nach in der 
Mitte zwischen denen von P. capitis und P. humanus* .” 
Pediculus lobatus Fahrenholz 1916. 
This form was named by Fahrenholz in 1913 (p. 373) but not described, 
the host being given as Ateles pan. Fahrenholz (x. 1916, p. 89) afterwards 
named the host Ateles rellerosus (sic) and described the louse (<$ $) as follows: 
“Kopf ahnlich dem von P. capitis. Vorderkopf an den Seiten je eine 
dunkelbraune Platte®. Sternum fehlt#; Thorax ohne Borsten#: Abdomen 
sehr breit, mit tiefen Einschnitten (besonders beim $). S mit zweiteiliger 
Genitalplatte (wie bei P. capitis maculatus)*. Letztes Segment des 9 hat statt 
Ausschnitt nur einen feinen Schlitz *. 
Prior to seeing the foregoing description, I had concluded (x. 1919, pp. 337, 
340) that the form probably represents P. humanus race capitis. The descrip¬ 
tion merely confirms me in this belief. Several lots of lice that I have examined 
from different species of Ateles , cannot, I find, be differentiated from ordinary 
capitis. 
Pediculus assi mills Fahrenholz 1919. 
Synonym: 
P. oblongus Fahrenholz 1916. 
This form was named by Fahrenholz in 1913 (p. 373) but not described. 
He gives the hosts as Hylobates concolor (mulleri ) and Symphalangus ( Hylobates) 
syndactylus. Fahrenholz (x. 1916, p. 88) gives the host as Hylobates sijndactylus 
Desm. and describes the $ only. Omitting the trivial details he gives, the 
diagnosis mentions the following supposedly specific characters: 
“grosste Breite im VII Segment# ...Gonopoden in Form denen voriger 
Art gleichend; die nach innen gerichteten Spitzen erreichen nicht den Ein¬ 
schnitt# des letzten Segments , das in Lange und Breite gleich ist #.’ 
