TANAIDACEA AND MARINE ISOPODA FROM JUAN FERNANDEZ 541 
joints are faintly indicated. The relation between the lengths of the peduncular 
joints and the flagellum is 7:9:4:5:6:2. 
Mandibles normal. 
Ist maxillae of the form usual in the genus, with about 7 saw-like teeth. 
2nd maxillae (fig. 7b) coalesced with the lower lip. Distally on the 
outer margin there is one strong seta on each maxilla. 
Lower lip distally cleft into 2 acute, awl-like lobes. 
The maxillipeds (fig. 7c) have on the last joint a small terminal tip — 
not separated as a distinct joint. 
The zst peretopods (fig. 7d and 7e) are very strong. 2nd and 3rd joints 
of about equal length. Propodus very broad, suboval, about */, as broad as it is 
long. Anterior edge convex, posterior edge a little concave. On the posterior 
side there are 7 submarginal setae next to the proximal part of the lower 
margin. 
2nd—4th pereiopods (fig. 7f). The lower margin of propodus has two 
rows of setae with 5 setae in each row. 
5th—7th peretopods (fig. 7g). 2nd joint a little longer than the 3rd, 
which is a little longer than the 4th and 5th together. These two joints are 
together almost as long as the 6th joint. The merus and carpus are of about 
equal length. The merus has its upper distal corner produced and acute, the 
carpus has its distal margin almost rounded. 
: On the 6th pereiopod (fig. 7g) the carpus has two strong setae on its 
lower margin and two long and slender setae next the lower distal corner, 
and the propodus has 2 strong setae on the lower margin. 
1st pleopod (fig. 8a). Basipod with its inner distal corner produced and 
acute. Exopod single-jointed with inner margin straight and outer margin 
considerably convex. Apex broadly rounded. The exopod is comparatively 
short and is only furnished with 3 terminal setae. 
2nd pleopod (fig. 8b). Exopod oval, single-jointed, about half as broad 
again as the endopod, with 8 setae on the distal and outer mangin. Endopod 
subrectangular with 3 setae on the rounded distal margin. 
3rd and 4th pleopods. Like the second. 
Uropods (fig. 8c). Endopods reaching about as far as the telson. First 
joint with a longitudinal row of long setae on the lateral margin. Second 
joint oval, but with narrowly rounded end, dorsally concave, ventrally convex, 
about half as long again as it is wide. Exopod with its outer margin convex, 
not sinuated near apex. 
Fam. Corallanidae. 
Genus Lanocira Hansen 1890. 
Lanocira hirsuta n. sp. — Pl. 20, figs. 7—10; text figs. 9, 10. 
22 individuals, adult males and females and immature specimens. Greatest 
length of specimen g mm (one male filled with food). 
Loc. Juan Fernandez, Masatierra, 20—35 m and 30—45 m. 
35—29232. The Nat. Hist. of Juan Fernandez and Easter Isl. Vol. III. 
