66 MR. A. W. WATERS ON 
this I think we may conclude that the suboral and avicularian 
glands are homologous. In this species, as well as in those 
alluded to in the subsequent part of this paper, it appears 
that the gland is emptied close by the wall of the tentacular 
sheath when the polypide is extruded; and we have seen that 
the avicularian gland of Lepralia foliacea*, Ell. & Sol., is attached 
in a somewhat similar manner to the sheath of the avicularium. 
The contents of the avicularian glands of Porella acutirostris, 
Smitt, are also a homogeneous mass; and we can scarcely doubt 
any longer that these glands are excretory organs. 
Karchenpauer has given the name Lepralia Smittii to Escharella 
Legentilu, forma prototypa of Smitt, but as Smitt figures 
distinct forms under his prototypa the name cannot be retained. 
Possibly Smitt had Lepralia borealis, Waters, before him as well 
as the present form. 
Loc. St. Lawrence (H.); Spitzbergen (Sm.); Greenland (Sm.). 
Jackson-Harmsworth Exp.: Lat. 77°55"N., long. 53° 16' E., 180 
fath.; off glacier between Cape Flora and Cape Gertrude, about 
30 fath. 
23. SCHIZOPORELLA ELMWOODTA, sp. nov. (Pl. 9. figs. 1 & 18.) 
A dry specimen encrusting a piece of basalt from off Elmwood, 
18 fathoms, seems to be new. : 
The zocecia are broadly ovate, considerably raised, and distinctly 
separated, with the surface finely granular, and with pores 
scattered over the surface. The aperture is close to the distal 
edge, and has a distinct sinus. The operculum is granular, and 
instead of having two muscular dots, as in most Schizoporelle, 
has a muscular ridge some distance from the border, and must 
perhaps ultimately be put in a separate division of the Schizo- 
porelle on that account. The ovicell is much raised, very broad 
and granular; and is not closed by the operculum. In a few 
zocecia there is a triangular avicularium on one side lower than 
the aperture. There are sometimes irregular elevations on the 
two sides of the zoccia. 
Besides the Schizoporelle brought back by this Expedition, 
S. candida, Stimpson; S. linearis, Hass.; 8. biaperta, Mich. ; 
S. sinuosa, B.; 8S. limbata, Lorenz; S. stylifera, Levinsen; 
S. auriculata, Hass., are said to have been found in the Arctic 
regions. 
* Waters, “Observations on Gland-like Bodies in the Bryozoa,” Linn. Soe. 
Journ., Zool. vol. xxiv. p. 272. 
