370 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
raised papillae, shell lower anteriorly than posteriorly, ventral border 
with a distinct re-entrant, widest posteriorly; antennulae 6-jointed, 
joints decreasing in size and length toward the outer end, setae all 
simple; antennae 4-jointed; feet short; animal viviparous. 
Xestoleberis depressa Sars. 
Xestoleberis depressa Sars, ’66, p. 68; Brady, ’68, p. 438, pi. 27, fig. 27-33; ’70, 
pp. 450, 453; Brady and Crosskey, ’71, pp. 61, 63; Brady, Crosskey, and 
Robertson, ’74, p. 190, pi. 7, fig. 13-19; Brady, ’80, p. 124, pi. 31, fig. 1 
a-g; Brady and N of man, ’89, p. 188. 
Of this species but a few specimens were found and these were 
dead shells, Vineyard Sound, “Fish Hawk” station 7723. This 
species appears to be a northern one and the few specimens found 
here may be well toward its southern limit as in the case of Cancer 
borealis, Strongylocentrotus drobachiensis, and other strictly northern 
species found in the deeper, colder waters of the Sound. It is re¬ 
ported by Brady (’70) from the Gulf of St. Lawrence but the record 
was somewhat in doubt according to that author. Brady and Cross¬ 
key (’71) record the species from the post-Tertiary clays of Portland, 
Maine. In the north it is found in Davis Strait, Greenland, and 
Spitzbergen and follows down the coast of western Europe into the 
Mediterranean. 
Genus Loxoconcha Sars. 
Loxoconcha Sars, ’66, p. 61; Brady, ’68, p. 432; ’80, p. 116; G. W. Muller,. 
’94, p. 342. 
Shell usually with a decided projection on the dorso-posterior 
angle with a corresponding re-entrant behind it; ends and ventral 
margin extended into a flattened rim; antennulae 6-jointed, slender, 
last joint with a group of long slender setae; antennae 4-jointed, 
third joint much the longest; feet long and slender, alike in both sexes. 
Loxoconcha guttata (Norman). 
PI. 31, fig. 42-48; pi. 32, fig. 56. 
Cythere guttata Norman, ’65, p. 19, pi. 6, fig. 9-12. 
Loxoconcha guttata Brady, ’68, p. 436, pi. 27, fig. 40-44; Brady, Crosskey, 
