CORRIGENDA. 
^Jh^ Editor requests that the following Corrigenda will be 
Page 688, line 10, for 5, read 33. 
699, line 4, for helUs (Lin 
(0. F. Muller), Gray. 
„ 703, lines 4 and 8 from below, for helUs, read aciaeata 
For these mistakes the Editor is responsible. 
June 6, 1891. 
The Rev. W. S. Geeen kindly asked me to report upon thie collection 
of Echinodermata obtained during the dredging cruise of 1888. The 
Committee were fortunate in obtaining an interesting series of 
forms. Eorty species are enumerated in the following lists, viz. : — 
Crinoidea, 1 ; Asteroidea, 17; Optiuroidea, 6; Echinoidea, 10; Holo- 
thuroidea, 6. Four of the species of Asterids and one of the Echinids 
are new. Several of the other forms are eitker rare or extend our 
knowledge of their geographical and bathymetrical distribution. The 
novelties consist of a new species of Hymenaster, a new species of 
Pteraster, two new species of Pentagonaster, and one new species of 
Porocidaris. The collection as a whole furnishes striking evidence of 
the richness of the locality, for it is not a little remarkable that so 
large a number of species of Echinoderms should have been taken from 
the comparatively limited number of eight stations. The majority 
(24 species) were dredged from depths of 345 and 750 fathoms, and 
are consequently important additions to our lists of the Fauna of the 
British Area. 
I.— CEINOIDEA. 
1. Antedon rosacea (Linck). 
Locality — Long Island Sound. Depth 4 fathoms. 
II.— ASTEEOIDEA. 
1. Plutonaster lifrons (Wyv. Thoms.), Sladen. 
Locality— 51° I'lS". ; Long. 11°50'W. Depth 750 fathoms. 
2. Pontaster limhatus^ Sladen. 
Locality — About 56 miles off Dursey Head. Depth 345 fathoms. 
