519 



broadly lanceolate, and equal in length; the endopodite is very slightly 

 broader than the exopodite. The basipodite of uropods III is distally 

 broadened and short, its length equal to its maximum width; the rami, 

 especially the endopodite, are strongly broadened and longer than the 

 basipodite. The rami of all uropods have denticulate margins and their 

 tips fall somewhat short of the tip of the telson. The telson is triangular, 

 with a long pointed tip, and variable in length but closer to the length 

 of the last urosomite. 



Distribution: Warm waters of the Atlantic, Pacific, and Indian oceans 

 from 37° S to 35° S. It is common in the Mediterranean Sea. It prefers 

 depths of 0-300 m. Females with brood in the brood chamber are found 

 almost year round. 



4. Streetsia mindanaonis (Stebbing, 1888) (Fig. 225) 



Stebbing, 1888: 1598 (Leptocdtis); Bovallius, 1890: 93; Fage, 1960: 

 45; Pillai, 1966: 192. 



Length of adult crustaceans up to 12.5 mm but generally not more 

 than 11 mm. 



The head is very large and 1/3 or more the total body length. The 

 rostrum in males is about half the length of the head, in females some- 

 what shorter, stretched and pointed, with its tip sometimes bent down- 

 ward. The head attains maximum height in the medial part and tapers 

 stroi^gly but smoothly in females anteriorly at the place of transition to 

 the rostrum and posteriorly on transition to the neck; in males a shallow 

 dorsal depression occurs at this site but the constriction per se is barely 

 noticeable. 



The body is narrow and the pereon approximately the same length 

 as the pleon. The 2nd segment of pereopods I is about equal in length 

 to the remaining segments together; the 5th segment is almost squarish, 

 with a denticle in the anterior distal angle not reaching the tip of the 

 6th segment; the 6th segment has a strongly bulged anterior margin 

 and an almost straight posterior margin that is sometimes indistinctly 

 denticulate; the 5th-6th segments are armed on the posterior surface with 

 numerous setae. Pereopods II are longer and thinner than pair I; the 2nd 

 segment is approximately equal in length to the distal segments together; 

 the 5th segment is elongated, distally slightly broadened, and 1.5 times 

 longer than wide; the process of the distal margin falls far short of the 

 tip of the 6th segment; the 6th segment is narrow and its length 2-2.5 

 times its width; the claw is very slightly more than 1/3 the length of the 

 6th segment. The 2nd segment of pereopods III-IV is shorter than the 

 4th and 5th segments together; the 3rd-6th segments bear sparse short 

 setae on the posterior margin and the distal part of the 6th segment has 

 a fine pecten of setae. In pereopods V a pointed, backwardly directed, 

 spiniform process occurs between the coxa and the 2nd segment; the 2nd 



