STREETSIA LONGICEPS. 93 



The description of GLAUS being very short and the drawing not 

 very instructive, it is impossible to say anything definite about the closer 

 affinities of the species, but from the characteristics known it seems 

 most likely that it belongs to the genus Streetsia, and that it is 

 not identical with any of the above recorded species. Above (p. 90) I 

 have suggested that Oxycephalus longiceps of STEERING is another species 

 than that described by GLAUS. 



The original diagnosis given by GLAUS in 1879 runs: 

 Kopf sehr lang, mit dem riisselformigen Schnabel fast so lang 

 als der Mittelleib. Pigmentkorper des Auges sehr gestreckt, fast quadran- 

 gular. Beine schlank und diinn. Die Greifhand der beiden vorderen 

 Beinpaare mit scharfem, gezahneltem. Rande und einfacher, langer End- 

 spitze. Siebentes Beinpaar klein. Schwimmfusse diinn und schmachtig. 

 Integument glatt und ziemlich diinn. Seitenfliigel der Abdominal- 

 segrnente unbewaffnet. Das Caudaldoppelsegment nur wenig langer als 

 die Schwanzplatte, ebenso die Stielglieder der Uropoden nicht viel langer 

 als die Aeste.)) 



COLOUR. ? 



LENGTH. 6 mm. (young <$, GLAUS). 



HAB. The Indian Ocean, Zanzibar (GLAUS). 



Streetsia (?) mindanaonis, TH. STEBBING, 1888. 



Diagn. The head is as long as the pereeon, the pleon, and the first 

 ural segment together; the rostrum is about half as long as 

 the rest of the head. 



The perceon is dorsally rounded. 



The first pair of perceopoda are subcheliform; the under margin 

 of the carpus is smooth, with the hind corner a little pro- 

 jecting and sharp-pointed ; the hind margin of the meta- 

 carpus is smooth; the dactylus is minute. The second pair 

 are cheliform, with the carpal process ending into a slender, 

 spine-like tooth; the front and hind margins of the carpal 

 process are serrated; the hind margin of the metacarpus is 

 finely serrated, and provided with short bristles; it is much 

 longer than the front margin of the carpal process with the 



