332 
PACIFIC SCIENCE, VoL XVIII, July 1964 
Stephensen, L tenuicornis ( Sars ) , I. brevicornis 
(Sars), and 1. brusilovi (Gurjanova). 
From 1. chamissoi Gurjanova it differs by the 
equal antennae and the longer rami of uropod 
3; from I. krascheninnikovi by the equal anten- 
nae and the weak eyes. From L commensalis 
Chevreux the new species differs mainly by 
coxa 5 being slightly shorter than coxa 4 and by 
the weak eyes. 
family COROPHIIDAE 
GENUS Ericthonius Milne Edwards 
Ericthonius hunteri (Bate) 
Selected references: Sars 1895:605, pi. 216, fig. 
2; Holmes 1908:543; Chevreux & Fage 1925: 
354-356, fig. 363; Stephensen 1940:65; 
Stephensen 1942:403; Stephensen 1944:128; 
Enequist 1950:344-345, fig. 62; Gurjanova 
1951:951, fig. 662; Shoemaker 1955:68. 
MATERIAL: Pacific Grove, California, 300 + 
fathoms, USNM no. 103349, no. 42, 2 (1 male). 
DISTRIBUTION: Subarctic at Murman Coast, 
White Sea, Okhotsk Sea, Barents Sea, north of 
Russia; northeastern Atlantic south to Gulf of 
Gascogne but also penetrating into the Black 
Sea, as yet unrecorded in the Mediterranean; 
Alaska at Pt. Barrow and recorded here as far 
south in the eastern Pacific as Monterey Bay, 
descending apparently to greater depth with 
temperature. Previously recorded from 0-235 m, 
here to 550 m. 
family PODOCERIDAE 
GENUS Dulichia Kroyer 
Dulichia remis, new species 
Fig. 12 
DIAGNOSIS OF MALE: Pereonal and pleonal 
segments lacking dorsal projections; head lack- 
ing eyes and lateral bulges, lateral lobes and 
rostrum small; coxa 1 small, not spiniform, other 
coxae not acuminate, rounded below; palmar 
defining tooth of gnathopod 2 oblique, quite 
proximal, inner edge of article 7 bearing a long 
proximal tooth, article 2 broadly lobed on its 
distal half; pereopods 3-5 subprehensile, article 
6 inflated and strongly spinose, the serrate finger 
turned back on palm; telson with a dorsal ac- 
cessory lobe. Mouthparts like those figured by 
Sars ( 1895, pi. 228) for D. spinosissima except 
for the longer fourth maxillipedal palp article. 
HOLOTYPE: USNM no. 108637, male, 13.0 
mm. 
TYPE LOCALITY: Albatross Sta. 4781, the 
Near Islands, Alaska, 52° 14' 30" N, 174° 13' 
E, 482 fms, June 7, 1906. 
? FEMALE: If indeed these three specimens 
represent the female of this species there is a 
remarkable sexual differentiation. They differ 
from the male by the deeper head having lateral 
eye bulges filled with dispersed white cells; 
shorter outer rami of uropods 1 and 2; less 
inflated, yet distinctively prehensile sixth articles 
of the pereopods; relatively longer fifth articles 
of pereopods 3 and 4 (possibly on missing 
pereopod 5 of male also); and the distinct 
ventral bumps on coxae 3 and 4. 
Three criteria indicating that the two sexes 
belong to the same species are: (1) the pre- 
hensile pereopods 3 and 4 ( 5 ? ) , (2) the rather 
long fourth maxillipedal palp article, and (3) 
the peculiar dorsal accessory lobe of the telson. 
RELATIONSHIP OF MALE: In its second gnath- 
opod it is closely related to D. tuber culata (see 
D. curticauda , Sars, 1895: pi. 230, fig. 2) but 
lacks eyes, has a larger dactylar process on 
gnathopod 2, and has distinctly prehensile pere- 
opods 3-5. In addition to the above notes it 
differs from D. porrecta (see Sars, 1895: pi. 
229) by the nonacuminate second coxa. The 
new species differs from D. knipowitschi Gur- 
janova (see 1951) by the same criteria men- 
tioned above for D. tuberculata. 
Species noted for poorly developed eyes and 
for having second gnathopods reasonably similar 
to the new species are D. normani Sars (1895: 
suppl. pi. 8 ) , of which only the female has been 
described; D. hirticornis Sars (1885) and Steph- 
ensen (1944), and D. abyssi. The first two of 
these species have poorly prehensile pereopods. 
D. abyssi Stephensen (1944) lacks pereopods, 
and perhaps represents earlier growth stages of 
the present new species, since gnathopod 2 is 
shown in two stages which conceivably could 
lead to the present stage; terminal developments 
in the specimens at hand are the long dactylar 
tooth and the strongly broadened distal end of 
article 2 on gnathopod 2. 
