262 ZOOLOGISCHE MEDEDEELINGEN — DEEL HI. 
are not long enough to reach it. These bristles (fig. 1) have their basal 
part dark brown coloured and densely covered with small warts, whereas 
the hookshaped apex is of a pale hue and smooth. The short dorsal 
bristles, that have a straight, uncoloured, vitreous apex, are in the middle 
of dite length covered with warts. 
The ventral bristles (fig. 2) as usually are treed in three groups; 
the upper group contains two large bristles, the inferior group consists 
of about a dozen of smaller ones, bol in the median part there 
occur seven bristles of intermediate length. They all terminate distally in 
a slightly curved hook and at the base of this hook are provided with a 
blunt tooth. The dorsal cirri are rather short and do not extend to the 
distal end of the dorsal fascicle; they have a thin, clavate tip. The 
ventral cirri, much shorter than the dorsal ones, do not reach half the 
length of the ventral bristles. 
The head (fig. 3) much resembles that of Aphrod. aculeata; it is 
heart-shaped, with two circular, ocular areas on its anterior part, that 
however do not show distinct eyes. From the middle of its frontal margin 
the tentacle arises consisting of a thick, basal joint, about half as long 
as the head and of a slender distal part, that measures thrice the length 
of the preceding one. There occurs an oval, facial tubercle, nearly as 
large as the head, that has its surface nov with irregular grooves. 
Oe each side of = head the long basal part of the first parapodium 
is situated, which is transversely grooved. The tentacular cirri have a 
filiform tip. The palps are short, stout, not much tapering distally; they 
do not reach beyond the oral region, that extends over three segments. 
In the small specimen however they are longer and bent backward reach 
the 7th segment. Aphrod. perarmata is sufficiently distinguished from 
Aphrod. roulei by its smooth ventral skin, by the straight dorsal bristles, 
“arranged in three rows, and by the longer dorsal cirri. 
