26 CRUSTACEA COPEPODA. II. 
outwards; the exopod is as long as the endopod, oblong-triangular, with a subterminal long and somewhat 
slender spine, on the distal half of the outer margin with 2 spines, the distal one quite small, and it has no 
spine on the inner margin. Second and third pairs of legs do not exhibit any, at least not any marked, asym- 
metry, and are on the whole more similar to first than to fourth pair, though the setee and spines on the rami 
are on second pair a little, on third pair more, reduced in number. 
Length 1.44—1.6 mm. 
Remarks. — The asymmetry in the fourth pair of legs is found not only in the specimen partly 
dissected but also in the two other specimens; especially the differences in the shape and equipment with 
spines on the exopod of the two legs is very conspicuous. Whether a similar structure exists in any other 
species in unknown,' but, as pointed out above, B. inequipes is besides easily separated from B. brevipes 
Sars and B. ruber as figured by Scott by the jointing of the rami of the legs. 
Occurrence. —In sifted mud from two “Ingolf’’ stations. 
Davis Strait: Stat. 32: Lat. 66°35’ N., Long. 56°38’ W., 318 fathoms, temp. 3°9; 2 females. 
—- — Stat. 36: Lat. 61°50’ N., Long. 56°21’ W., 1435 fathoms, temp. 1°5; 1 female. 
As even 3 specimens have been discovered in sifted bottom material the form cannot be rare in the 
Davis Strait, but whether the specimen found in mud from 1435 fath. really originates from that depth may 
still be a little uncertain. 
Schizoproctus Auriv. 
This interesting genus comprises hitherto only a single species. 
30. Schizoproctus inflatus Auriv. 
1885. Schizoproctus inflatus Aurivillius, Vega-Expedit. vetenskapl. Iakttagelser, B. IV, p. 248, Tafl. 9, Fig. 
2I—32. 
1g2t. as —  G.O. Sars, Account, Vol. VIII, p. 72. Pl. XXXIV. 
“Occurrence. — Taken by the “Ingolf” at a single station. 
Davis Strait: Stat. 28: Lat. 65°14’ N., Long. 55°42’ W., 420 fathoms, temp. 3°5; I specimen, in 
sifted bottom material. 
This species does not seem to be rare at West Greenland. Mag. sc. M. Levinsen has taken it two 
times in Ascidia sp., probably at Egedesminde (Lat. 68°42’ N.); the Copenhagen Museum possesses one 
specimen from Molgula groenlandica and 3 large specimens taken in Boltenia boltent, in both cases from West 
Greenland but without special locality. Besides our Museum possesses a specimen taken by Dr. Vanhéffen 
in Tille Karajak Fjord (at Lat. 70°20’ N.) and presented under the name Dovopygus gibber Thorell, a wrong 
determination also given in his list (1897) of his Crustacea from Greenland. 
Finally this species has been gathered by the IInd Amdrup-Expedition at a single place. 
East Greenland: Lat. 67°14’ N., at the beach, rocky bottom with alge, July 24, 1899; 1 adult female. 
1 After this part of my manuscript was finished, Cand. mag. K. Stephensen directed my attention to Schellenberg’s 
paper ‘Neue Notodelphyiden ...... “ published in August 1922 (Mitth. Zool. Mus. Berlin, 10 B. 2) in which that author 
points out (p. 282—86) asymmetry of different degree in the exopod of the thoracic legs in several species. 
