85 
subrectangulus, latere posteriore oblique incurvo, angulo ex- 
teriore breviter, angulo interiore longius et acutius producto : 
exopoditum mediocre, stiliforme, foss® lateris posterioris scapi 
insertus: endopoditum telso »quale. Rami operculares pleo-. 
podum primi paris in mare post intus triangulariter producti. 
Color nigrobrunneus, maculis albidis in series longi- 
tudinales dispositis plus vel minus evanescentibus ornatus, 
maxime in trunci segmentis 2 et 7 maculis majoribus, ut 
sepe due zone transverse fingantur. Antennarum articuli duo 
priores et ultima pars articuli septimi albida; etiam uropodes 
sepe albidi. Exemplum subinde fere unicolor, griseum inve- 
nitur. 
Long. 10—12 m.m. Lat. 45—5 m.m. 
Patria: Kamerun. Mr. Y. Sjöstedt has taken several spe- 
cimens among specimens of other species in the months 
April, August and November 1891 at Kitta and Bonge and 
at Bibundi under decaying leaves. (Mus. Upsaliense). 
4. Periscyphops gibbosus. 
(Tab. V. fig. 23—25). 
Superficies minute setigera. 
Caput in exemplo unico deest. 
Trunci segmentum 1 margine laterali valde reflexo, infra 
plica brevi munitum; supra sulco profundissimo, longitudi- 
uali. Margo posterior segmentorum 1—2—3 valde utrinque 
sinuatus. Segmenta 2—3 epimeris subtus etiam ante plica 
brevi instructa. Pars posterior omnium segmentorum (2—7) 
transverse elevatior, linea curvata in epimera producta in 
tuberculo parvo finita. 
Telsum subtriangulum, convexiusculum, lateribus ad 
basin incurvis, apice rotundate obtuso. Uropodum scapus 
-oblonge tetragonus, exopoditum foss® apicali scapi insertum ; 
endopodita telso vix breviora. 
Long. e 4. m.m. Lat. c 2. m.m. 
Patria: Kamerun. Rudiments of one specimen were 
among specimens of other species from Bileundi, taken by 
Mr. Y. Sjöstedt in August 1891. (Mus. Holmiense). 
