231 
Trib. 4. Hyperiina. 
Fain. Hyperiidse. 
Gen. Hyperiopsis, n. 
Slsegtscharacteristik. Legemet af Hyperiernes ssed- 
v anlig e Form, fortil opsvulmet, med bred Rvg og smaa 
Epimerer. Hovedet stort, med starlit hvselvet Overdel. 
Gueno lifuldstamdigt udvildede. lste Par Pol ere stprre 
y »d 2det Par, med kort Skaft og en tydeligt udviklet Bi- 
s 'obe. Kindbakkerne forsynede med vel udviklede Palper. 
Ee 2 forreste Fodpar svagt byggede, simple, ikke subeheli- 
forme; do 2 folgende Par med 3die Led mcget stort, sam- 
Hientrykt, bladformigt; de 3 bagre Par tynde, nsesten traad- 
formige, med kun svagt udvidet Hofteled ; sidste Par Isengst. 
Srominefodderne kraftigt udviklede. Do 2 forreste Par 
Hnlefodder enkle, 2-leddede; sidste Par tvegrenede. Hale- 
'edhmnget rudimentsert. 
Bemserkninger. Skjpndt i sin almindelige Habitus 
temnielig lig de ovrige Hyperiider synes den nedenfor be- 
s krevne Amphipode dog i eukelte Hettseender mmrkoligt at 
^kille sig fra de tidligore bekjendte Former af denue Familie, 
s ' la at det ikke or usandsynligt, at man ved en noiere Un- 
dersog e l 8e vil finde det nodvendigt at sondru den som Typen 
*° r e n distinct Gruppe iiidenfor Hyperiinernes Tribus. Hvad 
'Er navnlig er paafaldende ved nservaerende Form or den 
kydelige og temmelig store Bisvobe paa lste Par Folere, 
< n Character, der som bekjcndt er ganske fremmed lor 
Eyperiiderne. Da kun et enkelt Exemplar foreligger, bar 
dike on noiere Undersogelse af Munddelene kunnet anstilles. 
75. Hyperiopsis Varingii, n. sp. 
(PI. XX, Fig. 21). 
Artscharacteristik. Legemet glat, uden dorsale F ort- 
s atser. Hovedet oventil jevnt buet med et svagt Frem- 
s pring over Roden af lste Par Folere, de nedre Kanter 
ttsesten lige og horizontale. De 4 forreste Par Epimerer 
indbyrdes af ens Storrel.se og Udseende, simpelt tilrundede 
°mtrent halvt saa hoie som selve Kroppen ; de 3 bagre 
Su ccessivt betydelig mindre. De 3 forreste Bagkropsseg- 
'rionter mod vel udviklede, bagtil vinklede Sideplader; de 
d sidste smale og forkengede. lste Par Folere ikke fuldt 
‘d Legemets halve Liengde, med Svobens lste Led meget 
st °rt og i den iudre Kant tat cilieret, Bisvobeu omtrent 
"d dettes Lamgde og bestaaende af 4 Led; 2 det Par Folere 
betydelig svagere, med Skaftets nastsidste Led tyndt og 
Trib. 4. Hyperiina. 
Fam. Hyperiidse. 
Gen. Hyperiopsis, n. 
Generic Character. — Body of the usual form in 
Hyperidians, tumid anteriorly, with back broad and small 
epimera. Head large, with upper part prominently arcuate. 
Eyes incompletely developed. First pair of antenna; larger 
than 2nd, with peduncle short and a well-developed ac- 
cessory flagellum. Mandibles furnished with distinctly de- 
veloped palps. The 2 foremost pairs of legs feeble in 
structure, simple, non-subcbeliform; the 2 succeeding pairs 
with 3rd joint very large, compressed, lainelliform; the 3 
posterior pairs slender, almost filiform, with basal joint 
but slightly expanded; last joint longest. Pleopods power- 
fully developed. The 2 foremost pairs of caudal stylets 
simple, two -jointed; last pair biramous. Telson rudi- 
| mentary. 
Remarks. — Though bearing in its general habitus 
very considerable resemblance to other Hyperidians, the 
Amphipod described below would in certain respects ap- 
pear to differ remarkably from the previously known forms 
of the family ; and hence it is far from improbable that a 
closer examination will show the necessity of selecting it 
j as the type of a distinct group within the tribe Hyperiina. 
\ The most striking peculiarity in the present form is the 
distinct and rather large secondary flagellum on the 1st 
pair of antenme, a character quite alieu to Hyperidians 
in general. Having had but one specimen before us, a 
detailed examination of the oral appendages could not he 
undertaken. 
75. Hyperiopsis Varingii, n. sp. 
(PI. XX, fig. 21). 
Specific Character. Body smooth, without dorsal 
prolations. Head evenly arched above, with a slight pro- 
motion over base of 1st pair of antenna;, lower margins 
well-nigh straight and horizontal. The 4 anterior pairs of 
epimera uniform in size and appearance, simple rounded 
and close upon half as high as body; the 3 posterior be- 
coming successively much smaller. The 3 foremost abdom- 
inal segments with well -developed, posteriorly angulous 
lateral plates; the 3 last slender and elongate. First pair 
of antenme not quite half the length of body, with 1st 
joint of flagellum very large and on inner margin closely 
ciliate, secondary flagellum about equal in length to said 
joint, and composed of 4 articulations; 2nd pair of antennae 
