184 



20° W), the Mediterranean Sea, central and northern regions of the 

 Indian Ocean (up to 19°09' S, 68°07' E) and from the tropical regions of 

 the Pacific Ocean. It is found in catches from depths of 40-100, 100-200, 

 200-500, and 500-1,000 m. 



13. Scina submarginata Tattersall, 1906 (Fig. 72) 



Tattersall, 1906: 12; Wagler, 1926: 367; Vinogradov, 1964: 

 135. — marginata Garbowski, 1896: 100. — latipes Stephensen, 1918: 32. 



Length of sexually mature animals 5-8 mm. 



The body is thickset and without keels. The mouth cone protrudes 

 markedly. The eyes are well noticeable. The strong antennae I are shorter 

 than the pereon. 



The outer lobes of the maxillipeds are broadly oval; the inner lobes 

 are long, reaching 2/3-3/4 the length of the outer lobes, and armed with 

 two small apical setae. 



The pereopods are short and strong. The 2nd segment of pereopods I 

 is shorter than the 5th and 6th segments together; the 5th segment is not 

 denticulate in the distal part of the anterior and posterior margins; the 6th 

 segment is the same length as the 5th or shorter, oblong-oval, and not 

 extended over the claw in the form of a long spine. The 5th segment of 

 pereopods 11 is not denticulate in the distal part of the anterior margin; 

 the 6th segment is oval, not denticulate on the posterior margin, and does 

 not bear a distal spine. Pereopods III and IV are longer and thinner than 

 the preceding pair; their 4th segment is shorter than the 5th; the claw 

 is thin and slightly curved. Pereopods V are longer than pereopods III 

 and IV; their proximal segments are rod-shaped or elongated-oval; the 

 2nd segment is coarsely denticulate on the anterior margin and finely 

 denticulate on the posterior margin, its distal process long, straight or 

 weakly curved; the 4th segment is shorter than the 5th. Pereopods VII are 

 shorter than pereopods VI; the 5th segment of the last pairs of pereopods 

 is longer than the 4th or 6th segment. The width of the segments of the 

 last three pairs of pereopods is highly variable but their claws are always 

 short, strong, and falcate. 



The uropods are weakly armed; the exopodite of all the uropods is 

 shorter than the basipodite. The posterior margin of uropods II is sharply 

 bent at the level of attachment of the exopodite, so that the endopodite 

 is tapered; the posterior margin of the endopodite of uropods II and III 

 is denticulate. The telson is small, triangular, with a rounded or acute 

 apex. 



Notes: This species is close to S. marginata. In pereopods V the 

 2nd segment strongly varies in width, being particularly broad in sex- 

 ually mature males, its anterior margin more strongly armed than in 

 S. marginata, and the distal process is longer. 



