obtained during the Cruise of the ‘ Oceana. 3d 
was Rio Negro, and it has been reported from the Mediter- 
ranean, North Sea, Canary Islands, &c. ; so it has a widely 
distributed range. 
Setella gracilis, Dana. 
1852. Setella gracilis, Dana, Crust. U.S. Expl. Exped. p. 1198, pl. lxxxy. 
This well-defined species occurred plentifully in two 
gatherings, taken at 1065 and 1670 fathoms respectively. 
Delavalia palustris, Brady. 
1868. Delavalia palustris, Brady, Tr. Nat. Hist. Sec. Northumberland 
and Durham, vol. iii. p. 134. 
A fairly common species round our coasts in shallow rock- 
pools, but seemingly out of place in this collection! A 
single specimen was found at 1070 fathoms. 
Clytemnestra scutellata, Dana. 
1847. Clytemnestra scutellata, Dana, Proc. Amer. Acad. Boston, vol. i. 
p. 150 
The only specimen found was at 950 fathoms. This 
species has a wide range. Dana obtained it in the China Sea, 
Poppe in the Java Sea, and I have found it near Malta in 
the Mediterranean. 
Agisthus mucronatus, Giesbrecht. 
1891. Algisthus mucronatus, Giesbrecht, I’. Fl, Neapel, Cop. vol. xix. 
p- 573. 
Several specimens of this species were obtained from eight 
stations at depths of from 375 to 1570 fathoms. One 
specimen was found by Giesbrecht in the Pacific Ocean near 
the Galapagos Islands. ‘T’. Scott, in his excellent monograph 
“ Hntomostraca from the Gulf of Guinea,” describes his 
44. longirostris, which, from his description and drawings, I 
believe to be 4. mucronatus, Giesbrecht (the species before 
us). Scott says “they do not agree with 4. aculeatus, 
Giesbrecht,” but he appears to have overlooked 44. mucro- 
natus! Its long pointed rostrum is very diagnostic. 
Abgisthus aculeatus, Giesbrecht. 
1891. Ayisthus aculeatus, Giesbrecht, F, Fl, Neapel, vol. xix. p. 572. 
Evidently much less common in the district traversed for 
this collection, one specimen only having been obtained. 
Giesbrecht’s two specimens were taken along with 4. mucro- 
natus, from which the present species is easily distinguished 
by its small sharp rostrum. 
Ann. & Mag. N. Hist. Ser. 7. Vol. xii. 3 
