428 | ETEONE DEPRESSA. 
ventral surface is thickly covered with minute globular papille, except over the nerve- 
cords. Southern thinks it is closely allied to Pruvot and Racovitza’s S. minor, though 
different. 
Habitat.—Dredged in 14 fathoms in Clew Bay (Southern). 
PHOLO# TUBERCULATA, Southern, 1914. Plate CXX XVI, fig. 2—head. 
Specific Characters —Head with a large facial tubercle. It differs from P. minuta in 
the absence of papillae on the tentacular cirri, in the more minute papille on the feet and 
ventral surface ; papillze on the scales shorter, and only in one row; arrangement of the 
bristles in lateral bundles ; ventral bristles have stronger teeth and shorter tips in the anterior 
fascicles. Hitherto it has been found only on the West Coast of Ireland (Southern). 
SYNONYMS. 
1914. Pholoé tuberculata, Southern. Proc. Roy. Irish Acad., vol. xxxi, No. 47, p. 57, pl. vi, 
figs. 14a—n. 
1G Zila wees #3 McIntosh. Ann. Nat. Hist., ser. 9, vol. viii, p. 294. 
Habitat—Between tide-marks in Blacksod Bay, and dredged in 9—11 fathoms in 
Laminarian roots in Clew Bay (Southern). 
Were the facial tubercle present in P. minuta, then the other characters of P. tuberculata 
might reasonably be construed as those of a variety of the common form, viz., the “ absence 
of papillae on the tentacular cirri”’ (since some occur at their base), the more numerous 
papille on the feet and the ventral surface, and the shorter papilla on the scales. The occur- 
rence of white pigment in the palps and scales is a feature of the variety. No facial tubercle, 
however, has been made out in the common form, therefore Southern’s species stands, and 
is distinguished by the presence of this appendage, the bifid dorsal bristles, and short clavate 
cilia on the margin of the scales. 
FamMiILty PHYLLODOCIDZ. 
ETEONE DEPRESSA, Malmgren, 1865. Plate CXXXIV, fig. 7—head ; 7a—tail; 7b—foot ; 
7c and 7d—bristles. 
Specific Characters—Head somewhat conical, with a smoothly rounded anterior border ; 
from the sides spring four subulate tentacles of nearly equal length. Snout constricted 
behind these, gradually widens till near the posterior border, where a slight constriction 
again occurs ; posterior end with a central peak. In front of the centre of the head is a 
minute “boss” or papilla. On each side and a little in front of the latter is a small eye. 
Peristomium with two tentacular cirri similar to and scarcely longer than the tentacles. Body 
about 34 inches long and ;+; of an inch wide in life, flattened both dorsally and ventrally, 
the latter having a broad median depressed band, and a short lateral area in each segment. 
Median dorsal line slightly convex, and an elevation at the outer border of each segment. 
