BIHANG TILL K. SV. 'VET.-AKAD. HANDL. BAND 11: N:o 16. 11 
Family 4. CYLLOPODIDE. 
Diagn. Head large, globular. Eyes large occupying the 
whole sides of the head. First pair of antenne fixed at the 
anterior side of the head, with the first joint of flagellum 
tumid, elongate conical, the rest of flagellum terminal, few- 
jointed. Second pair filiform, angulated, fixed at the inferior 
side of the head. Mandibles with palp. Dactyli of seventh 
pair of pereiopoda transformed. 
Gen. 1. CYLLOPUS, Dana, 1852. 
United States Exploring Expedition. Crustacea. Vol. 2, p. 989. 
1. C. magellanicus, Dana, 1882. 
Iseat Vol 2, Pp: 990, pl, 68, fig: la—1g: 
Hab. »Orange Bay, Tierra del Fuego»>. 
2.200 Batei, nan: 
Typus: C. magellanicus. SPENCE BATE. 
Cat. Amph. Crust. Brit. Museum, p. 305, pl. 50, fig. 1. 
Hab. South Atlantic, Lat. 37” 26" S, Long T 44' W.> 
53. C. armatus, n. sp. 
Diagn. Head a little produced between the first pair of 
antenne. Carpus of first pair of pereiopoda not produced 
into a process; metacarpus armed at the hinder margin with 
a row of three-pointed, regular teeth. Metacarpus of second 
pair shorter than carpus, armed with a crest of imequal, sharp 
teeth. Dactyli of third and fourth pairs long, stout, serrated. 
Metacarpi of fifth and sixth pairs as long or longer than the 
two preceding joints together; dactyli smooth, pedunculated. 
Femur of seventh pair shorter and a little narrower than 
femur of preceding pair, fully twice as long as the following 
joints together; dactylus as long as metacarpus. Hinder 
corners of the pleonal segments rounded. First pair of uro- 
poda reach to the ends of the last pair, rami longer than 
peduneles, coarsely serrated. Rami of last pair half as long as 
