130 Proceedings of the Royal Physical Society... 
note of observations on this species was given. The facts there recorded may 
be summarised as follows :— 
Ocewrrence—Under decaying seaweed, in “drift,” above ordinary h.w. 
mark, in damp situations. 
Mating.—Observed during the last week of August, 1909 and 1911. 
Coition.—Referred to more fully below. 
Oviposition.—Occurred within a week of coition. 
Form and dimensions of the ovwm.—Oval, smooth, white or yellowish- 
white; 0°63 mm. x 0'+2—0:45 mm. in dimensions. 
Hatching.—Took place about twelve days later. 
General characters of the larva.—White, hexapod, active, not observed to 
feed ; front legs tactile, as in adult. 
First moult.— Occurred four days later, the fourth pair of legs appearing. _ 
Habits of nymph.—V oracious, even attacking larvee of its own species, 
but living mainly, like the imago, on small Enchytreeid worms. 
Habits of imagines—Though eyeless, are sensitive to light and move 
away from increased illumination ; discover food, and recognise sex of their 
companions, apparently by touch alone. 
(ee en 
Fie. 1. HLugamasus immanis, female. Fie. 2. EH. immanis, male. 
Outline of body and of dorsal shields, D.S. Dorsal view, showing in addition a palp, Pe., 
Mandibles, Mps., shown partly retracted. and one leg of the second pair, L.2. 
The following observations are now added :— 
Once identified, the species may be recognised at a glance by the large 
size of its individuals. They are giants amongst Gamasids, the female 
reaching a length of over 2°5 mm. and a breadth of over 1:6 mm., the male 
a length of over 2 mm, and a breadth of over 1 mm. ‘The female is con- 
spicuous by the broad white border surrounding the golden-brown shields 
(Fig. 1, D.S.) of horny integument that characterise the family. She has the 
appearance of having outgrown these armour plates, or of being distended in 
