62 (Bulletin of the Jhatural History Society. 
(b) In N. B. waters; — Grand Manan, low water to four or 
five fathoms, Stimpson, (D). Eastport and Grand Manan, 
under stones at low water, common, Verrill, (L), (N). Devil’s 
Head, St. Croix River, plenty. Fuller, (II). Craig’s Ledges, 
Passamaquoddy Bay, lowest tides, abundant [under name- 
iSynapta teimis^, Ganong, (X). Gulf of St. Lawrence, Whit- 
eaves, (P). 
I’his Ilolothurian is very worm-like in appearance, with its long cylin- 
drical body entirely free from suckers or other appendages. When 
alive it is transparent enough to show the internal organs and the five 
longitudinal rows of muscles. In the spaces between these rows are' 
scattered little excrescences which are sometimes one tw^enty-fifth of an 
inch in diameter, and which under the microscope may be seen to be 
made up of a great number of little spicules in the form of beautiful 
and regular six-spoked wheels. There are twelve tentacles, each con- 
sisting of a base and ten to twelve branches or fingers. The animal 
rarely exceeds four inches in length. It is^of a pale flesh-color when 
alive, and even in alcohol does not lose altogether its translucency. 
As to its habits, Stimpson says: “This species is fully and well de- 
scribed by Otho Fabricius, and his account of itshalfits applies precisely 
to those of our species, as I have often observed at Grand Manan. It lives 
in the stouy mud of the shores of these islands, buried to a depth of a few 
inches, usually in a horizontal position. It is found at low water, Imt 
is most abundant at a depth of four or five fathoms.” Nothing is 
known of its development. 
[Prof. Verrill tells the writer that in addition to those of 
the above list, he has from the Bay of Fundy two species of 
Trocliostoma (formerly Molpadia), Synapta, one or two more 
species of Thyonidium, Thy one scahra, and probably otliers. 
These will be described in one of his coming reports]. 
