38 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 124 



Basal segment of uropod with dorsal spine; proximal segment of 

 exopod with 8 slender, movable spines, last not extending to midlength 

 of distal segment; distal segment of exopod longer than proximal; 

 endopod broad, triangular, twice as long as broad; basal prolongation 

 consisting of 2 spines, trefoil in cross section, inner longer; ventral 

 surface of uropodal protopod unarmed at articulation of endopod. 



Color.— Body with dark bands, pattern variable (see illustration 

 in Kemp, 1913); carapace with 3 dark bands, body with dark band at 

 articulation of each somite; antennal scale with 1-2 dark patches, not 

 outlined with dark pigment; claw conspicuously banded with dark 

 pigment; basal portion of first walking leg light, of last 2 dark; sixth 

 abdominal somite light dorsally; telson with median and 2 submedian 

 dark parches, connected anteriorly; basal segment of uropod dark 

 proximally; distal half of distal segment clear; most of distal portion 

 of endopod dark. 



Size. — Only specimen examined, female, TL 146.0. Other measure- 

 ments: carapace length 26.4; cornea width 7.3; rostral plate length 5.3, 

 width 5.9; antennal scale length 16.5, width 7.1; fifth abdominal 

 somite width 30.5; telson length 20.2, width 28.6. 



Discussion. — The unarmed antennal and uropodal protopods, 

 broad rostral plate, broad antennal scale, and characteristically barred 

 claw will distinguish this species from others in the genus. 



Distribution. — Widely distributed in the Indo-West Pacific, from 

 numerous localities between the western Indian Ocean and Hawaii. 



Lysiosquilla tredecimdentata Holtliuis, 1941 



Figure 13 



? Lysiosquilla maculata. — Chopra, 1939, p. 16. 



Lysiosquilla maculata var. tredecimdentata Holthuis, 1941, p. 273, fig. 6. 

 Lysiosquilla maculata tredecimdentata. — Manning, 1963, p. 317 [listed]. 

 ? Lysiosquilla maculata maculata. — Ingle, 1963, p. 23 [part; reference to specimen 

 from Gulf of Aden only]. 



Previous records. — None. 



Material. — 1 cf, 161.7; Estuaire du Mangoky, western coast of 

 Madagascar; trawl; 9 m; grey mud, sand; A. Crosnier; June 1959; 

 USNM. 



Description.- — Eye large, cornea bilobed, set almost transversely 

 on stalk; eye not extending beyond end of second segment of anten- 

 nular peduncle; ocular scales sub triangular, flattened dorsally, apices 

 acute, directed anteriorly; corneal index 354. 



Antennular peduncle short but more than half as long as carapace; 

 dorsal processes of antennular somite visible lateral to rostral plate 

 as anteriorly directed spines. 



