Polyzoa of Queen Charlotte Islands. 46] 
Pierce Bay (Feilden, N. Polar Exp.) ; Barents Sea (Dutch 
Arctic Exp.).] . 
Menipea compacta, n. sp., form triplex. 
Zoecia in triplets, the two lower cells elongate, enlarged 
above and tapering off below, the upper one much shorter ; 
area oval, occupying about half the length of the cell; mar- 
gin raised and thin, four spines on the outer side and two on 
the inner, with a horn-coloured base, some of them stout and 
pod-like ; operculum slender, simple, acicular, placed on the 
inner side very close to the bottom of the area. Lateral avicu- 
laria variable in size, sometimes very large, borne on the two 
lower cells ; anterior avicularta wanting. Occium terminal, 
rounded, expanded above, smooth and punctured. Internodes 
very short and compact, somewhat wedge-shaped ; connecting 
tubes double. 
Loc. On weed, Queen Charlotte Islands. 
Tam not acquainted with any described species to which 
the present form can be referred ; it belongs to the section of 
the genus which is so characteristic of the Australian seas. A 
Menipea (apparently undescribed) occurs abundantly off Cali- 
_ fornia, and has also heen found off Vancouver Island, to which 
M. compacta bears a very close resemblance in the details of 
its structure, and with which it is probably identical, though 
the Californian form has more cells in the internode, and is 
furnished with a more fully developed operculum. A dis- 
tinctive feature of the species is the position of the operculum, 
very close to the lower extremity of the area. 
ScrupoceLLariA, Van Beneden. 
Scrupocellaria varians, n. sp. (Pl. XIX. figs. 1-1 c.) 
Zoarium much branched dichotomously, forming a shrubby 
tuft. Zowcia biserial, alternate, elongate, enlarged above, 
tapering off downwards; area about half, or sometimes more 
than half, the length of the cell, oval, margin thin and smooth, 
three spines on the outer side above and one on the inner; 
the portion of the cell below the area tapering, smooth; oper- 
culum small, usually trifid. Lateral avicularium either small 
and of normal shape (mandible pointed), or more commonly 
much elongated upwards, in the direction of the line of zocecia, 
extending a considerable way above the top of the cell to 
which it is attached, consisting of a long channelled beak (free 
through a great part of its length), terminating above in two 
spinous points, and a slender setiform mandible, bent at the 
apex, with an expanded triangular base, which, when at rest, 
