DIVISIONS OF THE GENUS. 
* Rostrum acuminate, sharp with four spines on each side (hinder spine smallest). Anterior legs 
depressed. Abdomen with the sides of the segments obiuse. Tail with the middle process trian- 
gular, the tip emarginate with the lacinie rounded. 
a. Internal antenne four-jointed, the first joint with its apex one-spined, the tip of the pcduncle 
being two-spined. External double feet-palpes with the second joint of the internal stalks longer 
than the first. 
b. Internal antenne three-jointed, their peduncle with three spines. External double feet-palpes 
with the second joint of the internal stalks shorter than the first. 
** Rostrum elongate spine-shaped with two spines on each side of its base (hinder spine smallest). 
Anterior legs somewhat cylindric. Abdomen with the sides of the segments acute. Intermediate 
lamella of the tail transverse-quadrate, the tip slightly notched. 
(Interior antenne three-jointed, peduncle with three spines. External double feet-palpes with the 
second joint of their internal stalk shorter than the first.) 
The Galathee inhabit deep water, and are for the most part found on rocky coasts. They 
move with very great rapidity, and when taken violently flap their breast with their abdomen. 
Johnson has figured three species of this genus. (Historia naturalis de exanguibus, tab. 2. 
Jig. 3.7. et tab. 4. fig. 11.) 
GALATHEA SQUAMIFERA. 
Tas. XXVIII. A. 
G. (* a) Pedibus anticis granulato-squamosis, manibus externe, carpis brachiisque interne 
spinosis. 
Cancer astacus squamifer. Montagu MSS. 
Galathea squamifera. Leach Edin. Encycl. 7. p. 398. 
Fig. 1, Mas adultus. 2, Mas junior. 3, Pedipalpus geminus externus panlulum auctus. 
4, Pedum tertii paris basis. 5, Femine pars eadem coxa perforationem exhibens. 6, Maris 
pes posticus coxa perforata. 7, Pes posticus Femine. §, Abdominis segmenti secundi maris 
appendiculum*. 
This elegant species of Galathea was discovered by Montagu on the Southern coast of 
Devon, where it occurs in very great abundance. ‘Young specimens generally have a white line 
running down their back, and in this state they are frequently taken by the dredge in deep water. 
It may be found under stones at low tide on all the rocky shores of Southern Devon from 
Plymouth to Torbay. 
* Observavit J. Sowerby, junior. 
