KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 22. N:0 7. 221 



The original description given by Dana runs: 



»The facets cover a very large part of either side of the head. The front of the head iu 

 profile is somewhat concave near or below the base of the superior antenna;, but much less 

 so than in Edwards' figure. The four posterior segments of the thorax are distinct, and the 

 first three are coalesced along the back. Antennas longer than the body; two fringes of hairs 

 on under side of third basal joint of the superior antennas, very delicate and close; apex of next 

 joint not acute; flagella very slender, consisting of very long joints, excepting part of flagellum 

 of superior pair, near the basal portion of the antennas; twenty joints or more to the flagellum 

 of this pair. First and seond pairs of legs nearly equal, terminating in an imperfect hand, the 

 lower apex of the antepenult joint being prolonged to about half the length of the next joint, 

 which is subcylindrical. Third and fourth pairs equal; seventh pair longer than either of the 

 preceding; these legs naked and without a longuish seta on fourth joint, as in the rubescens; tarsus 

 about one-third the length of the preceding joint. Basal joint in fifth, sixth, and seventh pairs 

 narrow, rounded or obtuse at apex. Caudal segment of abdomen about half as wide as preced- 

 ing, and nearly half as long as posterior caudal stylets, exclusive of the two terminal lamellas. 

 Posterior caudal stylets rather broad, the lamella; equal, broad oval-lanceolate, about one-third 

 as long as basal portion.» 



As the species described by Dana is thus not identical Avith Hyperla Fabrei, H= 

 Milne Edwards, and seems to be a well defined species, I propose for it the new name 

 Hyperia Danee. 



As its specific characteristics may be pointed out: 



The lower part of the head is rounded, not produced. 



The first three peroeonal segments are coalesced. The carpus of the first pair of 

 perceopoda is produced into a process nearly half as long as the hind margin of the 

 metacarpus. 



The seventh pair of perceopoda are longer than the others. 



The inner ramus of the third pair of uropoda is not longer than the breadth of 

 the peduncle. 



The telson is a little broader than, but not not half as long as, the peduncle of 

 the last pair of uropoda. 



17. HYPERIA SCHIZOGENEIOS, TH. STEBBING, 1888. 



Diag'l). Caput maximum, infra acute productum, segmenta quinque prima perasi longitudiuc aequajis. 

 Segmenta tria prima percei coalita, cetera libera. Carpus pedum percei primi paris dda- 

 tatus ac productus; margo anterior processus carpalis dimidio marginis posterior^ meta- 

 carpi brevior. Carpus pedum secundi paris productus; margo anterior processus carpalis 

 dimidio marginis posterioris metacarpi lougior. Metacarpus pedum primi et secundi pa- 

 rium spinam singulam margini anteriori afhxam gerens; margo posterior serratus, dentibus 

 simplicibus; dactylus longus. Pedes tertii ac quarti parium pedibus parium duorum prae- 

 cedentium paullo longiores; carpus non tumidus, spinis duobus margini posteriori aflixis 

 instructus; metacarpus carpo paullo angustior, serratus. Pedes parium trium ultimorum 

 duobus prascedentibus non longiores; carpus tibia longior; carpus metacarpusque serratiS 

 dactylus longus, simplex. Latera segmentorum phi post rotundata. Pedunculus pedum 



