81 
sterior. segmenti primi leviter, segmenti 2—3 levissime, 
utrinque sinuatus, segmenti 4—5 —6—7 medio leviter incurvus. 
Caude segmenta 3—D5 epimeris oblique rectangulis ante 
rotundatis. Telsum epimera subparallela segmenti 5 satis 
superans, pars basalis brevis, pars apicalis lata, longe pro- 
ducta, apice rotundato. 
Color griseo-plumbeus; in segmentis trunci secundo et 
septimo utrinque macula flava: flagellum cum dimidia ul- 
tima parte scapi articuli quinti album. 
Long. 6. m.m. Lat. 2,5 m. m. 
Patria: Kamerun. The described specimen is taken 
by Mr. Y. Sjöstedt. (Mus. Upsaliense). 
Subgenus 3. Periscyphops. 
Antenne: Flagellum breve, triarticulatum, articulatione 
ultima obscuriore. 
Maxillule: Lacinia interior penicillis numerosis (6-—9). 
Truncus: Segmentum 1 epimero ante crasso post tenui, 
supra sulco longitudinali, post desinente, a medio segmenti 
discreto, margine laterali non sulcato, post integro. Epimera 
segmentorum 1—2—3 subtus sepe lacinia vel plica instructa. 
Cauda: Exopodita omnium pleopodum trachea, spe 
rudimentaria, instructa. 
Telsum triangulum, lateribus incurvis, medio plerumque 
fortiter producto. 
Uropodes telsum superantes; scapus satis longior quam 
latior, latere interiore post valde producto; exopoditum medio- 
cre, apici scapi insertum. 
The species of this subgenus are all inhabitants of Africa. 
Conspectus specierum. 
a. Epimera segmenti primi infra lacinia vel plica minore. 
b. Caudæ epimera segmenti quinti post divergentia. 
1. Periscyphops silvanus. 
bb. Caude epimera segmenti quinti post convergentia. 
c. Trunei segmentum primum infra lacinia majore. 
