NEW ZEALAND PYCNOGONIDA. 171 
XV., figs. 8, 9).-Body smooth, very slender ; the lateral processes 
with large intervals between them. Proboscis large, one-third 
the length of the body; mouth triangular, not very large. 
Cephalothoracic segment as long as proboscis. Eyes small but 
distinct, oculiferous tubercle rounded. Mandibles very long, 
basal joint longer than rostrum, second joint also very long ; 
immoveable claw curved more strongly than the moveable one, 
furnished with large spines, which reach almost to the extremity; 
moveable claw furnished with smaller spines, except at the 
smooth extremity ; mandibles smooth. Palpi very slender, 
longer than rostrum; second joint very much longer than the 
third, fourth and fifth almost equal, latter with small hairs. 
Ovigerous legs of the mature male are characteristic; the fifth 
joint is very long and curved, divided into two by a rudimentary 
articulation and strongly swollen at the extremity; the sixth 
joint, also curved, makes an angle with the fifth ; four last joints 
small, and often bent so as to form a spiral ; the first joints are 
smooth, but the sixth is furnished with numerous hairs, and has 
on the upper surface rows of curiously-shaped knobs; the four 
last joints bear respectively 13, 8, 7, and 6 denticulated spines. 
The ovigerous leg of the mature female is almost quite straight ; 
the fourth and fifth joints are not so dissimilar as in the male; 
the denticulated spines on the four last joints are 19, 12, 10, and 
9 in number, and the sixth joint has none of the characteristic 
knobs. Legs about four times as long as body; the second 
joint in the males four times as long as first, a little shorter in 
females, but somewhat swollen at the extremity ; sixth joint the 
longest, being about one and a-half times as long as the fifth; 
first tarsal joint shorter than the second, the claw almost as long 
as the first joint; auxiliary claws wanting. Genital openings of 
the females very large, and found on each leg; of the male 
smaller, and found only on the three hinder pairs. 
Length of body, 10-12 mm. ; of legs, 38-46 mm. 
Fflabitat same as next. 
Dr. Hoek observes, “I believe this species with its rudimen- 
tary eyes to form the transition from the shallow-water species 
to the true deep-sea species. 
_ 2. Nymphon compactum, Hoek. (lc. p. 41; Pl. IL, figs. 6-8 ; 
Pl. XV., fig. 10).—Body stout, sparsely hairy; proboscis thick 
and swollen a little in the middle, and again at the extremity ; 
length about one-third of the length of the body. Cephalo- 
thoracic segment short, swollen anteriorly, constricted in the 
middle. Eyes obsolete, the oculiferous tubercle represented by 
a blunt knob. Abdomen long. Lateral processes of the body 
small, furnished with long hairs. Mandibles long, first joint a 
little curved, and much longer than the proboscis; at the 
ventral side this joint shows feebly an articulation near the 
base; second joint shorter, but furnished with very long claws, 
Which are curved at the.extremity, and both are armed with 
almost the same number of spines. Palpi much longer than the 
proboscis ; 2nd joint the longest, then follow in order of length 
