obtained during the Cruise of the ‘ Oceana? 29 
Augaptilus Rattrayt, T. Scott. 
ee. perganelus Rattrayi, T. Scott, Tr. Linn. Soe. ser. 2, Zool. vol. vi. 
p. 36. 
One specimen only of this rare species, hitherto only known 
through Mr. Scott’s excellent report on “ Entomostraca from 
the Gulf of Guinea,” was taken at 1070 fathoms. The short, 
crescent-shaped, flat-topped filaments which adorn the maxille 
and foot-jaws are quite diagnostic of this species. 
Augaptilus hecticus, Giesbrecht. 
1889. Augaptilus hecticus, Giesbrecht, Atti Acc. Lincei Rend. ser. 4, 
vol. v. p. 814. 
A single male of this species was found at 1275 fathoms. 
The elegant plumes near the extremity of the anterior 
antenne and on the caudal sete, as shown by Giesbrecht, 
were not present, probably lost. Previously known from 
the Mediterranean, Gulf of Guinea, and Pacific Ocean. 
Augaptilus longicaudatus, Claus. 
1868. Hemicalanus longicaudatus, Claus, Freileb. Cop. p. 129. 
A few specimens were found at 1070 and 1670 fathoms. 
This species is easily recognized by the flat-topped button- 
like filaments attached to the sete of the foot-jaws, similar 
to those of A. Rattrayi, which, as before referred to, are 
crescent-shaped. 
Its hitherto known areas of distribution are the Mediter- 
ranean, Gulf of Guinea, and Pacific Ocean. 
Arietellus setosus, Giesbrecht. 
1892. Arietellus setosus, Giesbrecht, F. Fl. Neapel, vol. xix. p. 415. 
A male and female of this very handsome species were 
taken at 500 and 1300 fathoms respectively. The beautiful 
yellow coloured plumose caudal setz at once distinguish both 
sexes. The Mediterranean and Gulf of Guinea are its 
hitherto known range. 
Phyllopus bidentatus, Brady. (Pl. III. figs. 6-9.) 
1885. Phyllopus bidentatus, Brady, Rep. Voy. Chall. vol. viii. p. 78. 
This species is known only from three specimens—first, a 
female described by Brady from the ‘ Challenger’ Expedition 
taken down to 2650 fathoms in the South Atlantic; the 
second, also a female, by Giesbrecht at 1800 metres, from 
the Pacific; and now the third, a male from the North Atlantic 
at 560 fathoms, in the present ‘ Oceana’ collection. 
