412 Rev. A. M. Norman on new Crustacea Amphipoda. 
the wide extremity of the wrist, in a central hollow between 
two lobes. Pleon usually (but not invariably) having a hump 
on the back of the fourth segment. 7e/son squamiform, semi- 
elliptic, cleft almost to the base, cleft narrow, not widening at 
the extremity. Uropods: first scarcely equalling second ; last 
having two flattened, one-jointed, equal rami; inner margin 
of inner ramus with three short blunt spines, its extremity 
and both margins of exterior ramus setose. Length 34; inch. 
Gies remarks on this species :—‘‘ Ex abysso ad Aukpad- 
lartok Greenlandie copiam magnam retulit Torell speciminum 
valde robustorum et oculis quatuor, duobus in vertice, duobus 
in angulo infero-laterali antico capitis insignium—ceterum 
cum nostra plane congruentium.” My Northumberland spe- 
cimens agree with those from Greenland in having four simple 
eyes. ‘The number of eyes, therefore, would not seem to be 
constant ; but there are ample grounds for separating the genus 
Haploops from Ampelisca. 
First found by me in deep water off Berwick, and seven 
miles off Tynemouth, Northumberland, in 1862, and again 
dredged in 1866 in the Minch. 
Genus TESSAROPS, n. g. 
Eyes four—two (large, compound) situated above the origin 
of the superior antenne, and two (nearly simple) below the 
others, at the base of the superior antennee. Superior antenne 
furnished with a very slender secondary appendage. Both 
pair of gnathopods simple, not subchelate. Last peretopods 
short, stout. Pleon having dorsal margins of segments toothed. 
Telson squamiform. Last wropods two-branched. 
Tessarops hastata,n. sp. Pl. XXII. figs. 4-7. 
? Tiron acanthurus, Lilljeborg, Amphipoda Lysianassina, 1865, p. 19. 
?Syrrhoé bicuspis, Goes, Crust. Amphip. maris Spetsbergiam alluentis, 
1865, p. 12, pl. 40. figs. 26 a-l. 
Head produced. Upper eyes ovate, large; lower eyes (in 
type specimen) consisting of two lenses. Superior antenne 
having each joint of the peduncle shorter than the preceding 
one; flagellum composed of ten, secondary appendage of five 
very long articulations ; the basal articulation of the flagellum 
longer than either of the last two joints of the peduncle; the 
secondary appendage is remarkably slender at the base, and 
equals the first four articulations of the flagellum im length. 
Inferior antenne considerably longer than the superior; last 
joint of peduncle equal to two-thirds the length of the penul- 
timate, flagellum of about the same length as the peduncle. 
