120 



invariably just two-thirds the length of Üie pedunele. 

 Two teeth on the carapace behind the orbital margin, 

 3d tooth immediately before that margin, 2d tooth ahvays 

 one and a half as far distant from the Ist as from the 

 3d, teeth spiniform, prominent. 

 lougirostris (H. M.-Edw.). 

 h'^ Carpus of 2<J legs considerably shorter than cheUi, 

 measuring less than two-thirds its length. Rostrum distally 

 more or less turned upwards, with a more or less long, 

 distal portion of the upper margin unarmed. 

 c' Branchiostegal spine situated at the margin of the 

 carapace. Fingers of 2d legs as long as or slightly 

 shorter than carpus, only slightly longer or as long 

 as palm. 



d' Shorter ramus of outer antennular fiagellum reaching 

 about to apex of rostrum, though extending never 

 more than 2,5 mm. beyond it. Second joint of man- 

 dibular palp in adult specimens 2,5 to 2,7-times as 

 long as thick. serratits Penn. 



d'^ Shorter ramus of outer antennular Hagellum reaching 

 4,5 to 6,5 mm. beyond apex of rostrum. Second 

 joint of mandibular palp in adult specimens 1,7-times 

 as long as thick, 



serratns (Penn.), var. Treillidna (Risso). 



c" Branchiostegal spine a little remote from the margin of 



the carapace. Fingers of 2d legs a little longer than 



carpus, considerably longer than palm. Antennal flagella 



with dark and light rings. .ripJdas (Risso). 



Leander Squilla (Linné) Typical form. 

 PI. X, Fig. 1 — 1>/. 



Cancer Squilla, C. Linnaei Syst. Naturae, Ed. 10, 1758, p. 632. 

 Palaemon Squilla, J. C. Fabricii Suppl. Entom. System. 1798, 

 p. 403. 



