no. 3641 STOMATOPOD CRUSTACEA — MANNING 17 



Telson as broad as long, appearing elongate; carinae of marginal 

 teeth short, rounded, slightly nodulose dorsally; 3 pairs of marginal 

 teeth present, prelateral lobe formed dorsally but not projecting 

 laterally; marginal carina over twice as long as carina of lateral tooth; 

 denticles subequal, sharp, 4-7, 10-12, 1 ; ventral surface with postanal 

 keel extending about halfway between anus and posterior margin. 



Uropod with 9 movable teeth on outer margin of proximal segment 

 of exopod, last short; lobe on outer margin of inner spine of basal 

 prolongation prominent, rounded, margin concave. 



Color. — Anterior edge of antennal scale dark; carinae, grooves, 

 and posterior margin of carapace dark; thoracic and abdominal 

 somites with anterior and posterior dark, transverse lines, posterior 

 broader and darker, and intermediate and marginal carinae outlined 

 with dark pigment; telson with pair of anterior, submedian, round 

 black spots; carinae and margins of uropod with dark chromatophores, 

 particularly inner margin of exopod; endopod with dark pigment 

 lining both edges of distal half, central portion clear. 



Size.— Male, TL 171.0; females, TL 118.2-141.5. Other measure- 

 ments of male, TL 171.0: carapace length 32.2; cornea width 10.4; 

 rostral plate length 5.6, width 5.1 ; fifth abdominal somite width 32.8; 

 telson length 30.4, width 30.4. 



Discussion. — The presence of a median carina on the carapace, 

 submedian carinae on the abdomen, and the lighter colored uropods 

 distinguish this species from H. melanoura, new species, described 

 below. Other differences are discussed under the account of the new 

 species. 



Harpiosquilla harpax lacks the lateral spine on the fifth thoracic 

 somite, which is characteristic of H. raphidea (Fabricius), and lacks 

 the armed intermediate carinae of the thoracic somites, which char- 

 acterize H. annandalei (Kemp) and which may occur also in very 

 large specimens of H. raphidea. In their account separating H. harpax 

 from H. raphidea, Tiwari and Biswas (1952) also pointed out other 

 differences between the two species. 



The specimen from Australia assigned to this species by Manning 

 (1966) belongs to an undescribed species, an account of which is in 

 preparation. 



Through the kindness of L. B. Holthuis, Rijksmuseum van Natuur- 

 lijke Historie, Leiden, I Avas able to study one of the syntypes of 

 Squilla harpax de Haan and compare it directly with the specimens of 

 H. harpax and H. melanoura, new species, reported here. The specimen, 

 a male, TL 152.5, from Japan, RMNH 28H, is here selected as the 

 lectotype of Squilla harpax. It agrees in all details with the specimens 

 of H. harpax from Madagascar. 



273-102 — 67 2 



