THE ANNALS 
AND 
MAGAZINE OF NATURAL HISTORY, 
[SIXTH SERIES. ] 
No. 52. APRIL 1892, 
XLI.— Natural History Notes from H.M. Indian Marine 
Survey Steamer ‘ Investigator,’ Commander R. F. Hoskyn, 
R.N., commanding.—Series If., No. 1. On the Results of 
Deep-sea Dredging during the Season 1890-91. By J. 
Woop-Mason, Superintendent of the Indian Museum, and 
Professor of Comparative Anatomy in the Medical College 
of Bengal, and A. Atcock, M.B., Surgeon I.M.S., Sur- 
geon-Naturalist to the Survey. 
{Continued from vol. viii. p. 362. ] 
[Plates XIV. & XV.] 
Family Psalidopodide, fam. nov. 
Olfactory flagellum of antennules simple. Mandible deeply 
divided into molar and incisive processes and furnished with 
a 2-jointed palp. The exopodite of the first maxillipede is a 
broad and abruptly incurved falciform plate which does not 
terminate in a flagellum, and is not expanded at the outer 
margin into a process. The exopodites of the second and 
third maxillipedes are undivided, porrect, and membranous 
flagella. The thoracic appendages from the second to the 
eighth inclusively have the third (ischiopodite) and fourth 
(meropodite) joints fused, and are hence all 6-jointed with 
Ann. & Mag. N. Hist. Ser. 6. Vol. ix. 20 
