122 
tento 
tento 
of about 20 ocelli. The cere¬ 
bral eyes form a compact 
mass in which, however, one 
may with some difficulty 
distinguish two scarcely se¬ 
parated groups. Anteriorly 
the cerebral eye-mass breaks 
up into various groups and 
cannot with any certainty be 
distinguished from the frontal 
eyes. As in Cr. wahlbergi, 
the mass of cerebral eyes 
lies for the most part in front 
of a line connecting the two 
tentacular rudiments. 
As the above descriptions 
show, the divergencies from 
Cr. wahlbergi Bock in respect 
to the external appearance 
are not very great. The two 
species can most easily be 
distinguished through the 
different shape of the body 
(Cf. Bock 1913, Taf. III, Fig. 
8 and the accompanying 
figure, Plate III, Fig. 21) and 
the arrangement of the eyes. 
In addition there are numer- 
ous minor differences in the 
inner organization that argue 
in favour of at least a tenta¬ 
tive separation of the species 
of C rystophall LIS found in the 
Malayan archipelago from 
Cr. wahlbergi occurring in 
South Africa (Port Natal). 
In any case, however, at present the conditions at hånd do not 
entitle me to class the two forms in the same species. In this 
Iph 
Text-fig. 14. Cryptophalliis sondaicus n. sp. 
Cerebral and tentacular eyes. The latter are 
indicated with the letters tento. Anterior end 
of pharynx (ph). 16 x. 
o o o o 
Text-fig. 15. Cryptophalliis sondaicus. 
Marginal eyes at the extreme posterior end 
of the bodv. 45 x. 
