22 
3. Hemilamprops rosea (Normau). 
(PI. XII, XIII, XIV.) 
Vavmthompsonia rosea, Norman, Transact, of the Tyneside Nat. Club; Vol. 5, p. 271, IT 13, 
figs. 1 — B. 
Syn: Cyrianassa elegans , Normau (male). 
„ Lamprops rosea , G. O. Sars. 
Specific Characters. —Body rather slender, especially in the male, with 
the tail exceeding the anterior division in length. Integuments thin, semipellucid. 
Carapace in female rather small, much shorter than the exposed part of the 
trunk, upper margin straight, horizontal, lower evenly arcuate, sides perfectly 
smooth, pseudorostral projection very small, almost obsolete. Carapace of male 
comparatively larger with the lower edges less regularly arcuate. Eye very large 
and conspicuous, with beautiful red pigment and 8 corneal lenses. 1st pair of 
legs exceedingly slender and elongated, when extended, fully twice the length of 
the carapace, penultimate joint longer than the 3 preceding ones combined. 
2nd pair with the last joint longer than the penultimate one. 3rd pair in female 
slender, with the basal joint narrow linear and more than twice as long as the 
remaining part of the leg; those in male, as usual, with the basal joint greatly 
expanded, and moreover marked by the presence of 2 peculiar, smooth, falciform 
spines appended to the inside of the ischial joint. Uropoda very slender, equalling 
in length the last 3 caudal segments combined, inner ramus much longer 
than the outer, with the 1st joint much the largest and armed inside with 
about 15 spinules. Telson rather broad, lamellar, fully twice as long as the 
last segment, and but slightly narrowed distally, with generally 2 pairs of slender 
setiform spines laterally, and 8 spines issuing close together from the rounded 
apex, the 2 outermost of which are longer than the others. Body ornamented 
with a beautiful crimson pigment arranged in ramified, stellate patches both on 
the carapace and the several segments. Length of female 6 mm., of male 7 mm. 
Remarks. —This form was first described by the Rev. A. M.Norman, but erro¬ 
neously referred by him to the genus Vaunthnmpsonia of Sp. Bate, which is very 
different. The adult male was described by the same author, but was not recog¬ 
nized as such. It was recorded in the same paper under the name of Cyrianassa 
elegans. Some years afterwards the present author found this species off the 
Norwegian coast, and referred it to his genus Lamprops , not being at that time 
aware of the sexual differences in that genus. It is a very beautiful form, 
easily recognizable in fresh condition by the bright crimson pigment ornamenting 
the body and especially the carapace. In the adult male the natatory exopodites 
of the legs are very fully developed, and in order to receive the strong muscles 
