511 



413 exopodite. Uropods II are shorter than uropods I. None of the tips of 

 the rami of all the uropods reaches the tip of the telson. The telson is 

 narrowly triangular and approximately the same length as the geminate 

 urosomite. 



Type species: Streetsia challengeri Stebbing, 1888. 



According to the modern interpretation of the genus, it includes four 

 species. 



KEY TO SPECIES OF GENUS STREETSIA 



1. Body compact, with thick integument. Head less than 1/3 total 

 body length. Length of last (geminate) urosomite slightly more than 

 width 3. S. porcella (Claus). 



— Body with thin integument. Head long, not less (often more) than 

 1/3 total body length. Length of last urosomite twice or more its 

 width 2. 



2. Process of 5th segment of pereopods II not reaching tip of 6th seg- 

 ment. Epimeral plates with large cuticular pore in middle 



4. S. mindanaonis (Stebb.). 



— Process of 5th segment of pereopods II long, reaching base of claw. 

 Epimeral plates without noticeable cuticular pore 3. 



3. Length and width of 5th segment of pereopods I approximately equal, 

 its posterior distal angle coarsely denticulate, apical denticle directed 

 distally and differs little from neighboring ones in size. Posterior 

 margin of 2nd segment of pereopods II in adult females stretched 



distally into stiff triangular lobe. Body length up to 48 mm 



1 . 5. challengeri Stebb. 



— Fifth segment of pereopods I elongate, apical denticle on posterior 

 distal angle large and directed at an angle to posterior margin of 

 segment. Second segment of pereopods II without lobe. Body length 

 up to 12.5 mm 2. S. steenstrupi (Bov.). 



1. Streetsia challengeri Stebbing, 1888 (Fig. 222) 



Stebbing, 1888: 1591; Bovalhus, 1890: 82; Stephensen, 1925a: 194; 

 Spandl, 1927: 186; Barnard, 1932: 295; Pirlot, 1938: 369; Fage, 1960: 51; 

 Pillai, 1966: 189; — pronoides BovalVius, 1890: 84. — stebbingi Chevreux, 

 1900: 161.— washingtoni Senna, 1903: \5.—subada Colosi, 1918: 218. 

 — gaussi Spandl, 1927: 184. 



Size of females up to 48.5 mm, of males up to 32.5 mm. Sexual 

 maturity may set in at considerably smaller sizes (10-12 mm). 



The body is well proportioned; the head is very large, cylindrical 

 or slightly conically tapering to the rostrum, in females over 1/3 the 

 total body length (in the largest specimens up to 2/5), mostly because of 



