Gatty Marine Laboratory, St. Andrews. 231 
figure in fig. 29, pl. xxv.) is remarkable. He has likewise 
omitted to record the presence of the spikes. His artist has, 
further, taken considerable liberties in his drawing of the 
ventral bristles (pl. xxv. fig. 28), but perhaps the style of 
plate adopted is unsuitable for the illustration of structures so 
delicate and yet so characteristic. The distal segment of the 
palpus is also overlooked in pl. xxi. fig. 10 and the sub- 
frontal papilla is tapered to a point, whereas that in the 
specimens from the ‘ Porcupine’ was blunt. 
Dathousiella Carpenter?, sp. n.* 
Habitat. A single example was dredged in the ‘ Porcupine’ 
expedition of 1870 at station 9, on the Channel Slope, 
lat. 48° 06! N., long. 9° 18’ W., in 539 fathoms, on a bottom of 
grey mud. Bottom temperature 48°-0; surface temperature 
64°-0 Fahr. This species accompanied Tyrrhena atlantica, 
which, like Ophiodromus and other Hesionidz, has a fondness 
for mud—often of a most tenacious description. 
Head (PI. 1. fig. 9) agrees with the type seen in Dalhousia 
and, though there is no median tentacle, in Tyrrhena. The 
tentacles appear to be about the length of the palpi, which 
have a short terminal segment. A deep median furrow 
separates the rounded lobes on which the large and closely 
approximated eyes are situated. ‘The preparation shows less 
disproportion between the anterior and posterior eyes than 
usual, but it is not good. There are eight pairs of tentacular 
cirri, with spines, in the buccal and following segments, and 
they appear to have long and slightly moniliform tips as in 
allied forms. 
Body of the typical form, about 1 in. long (in spirit), and 
with 17 bristled segments. The posterior end appears to be 
injured, though two short cirri occur beneath the vent. The 
papilla beneath the snout is small (or little elevated). 
The proboscis has a firm wall and a glistening interior 
surface, but, though the parts are dense in the mid-dorsal line, 
no distinct teeth are present. 
Feet. In the state of the preparation the shape of these is 
uncertain, but they are long and appear to diminish more 
towards the outer edge than in Tyrrhena. The dorsal cirrus 
arises somewhat behind the ridge of the foot, has two very 
* The genus thus provisionally established agrees with Heszone in its 
uniramous foot, but differs in the structure of the bristles and in the 
number of the tentacular cirri. It is named after the late Secretary for 
Scotland, who took so masterly a grasp of the Scottish Fisheries. The 
specific name is after the late Dr. B.W. Carpenter, who occupied so promi- 
nent a part in the ‘ Porcupine’ expeditions, 
Le 
