VI 



LORICATA THE ROCK LOBSTKK 



I6 5 



Tribe 5. Loricata. 



The Loricata include the Langouste (Palinurus) of the Mediter- 

 ranean coasts, which replaces there the Lobster of the North Sea 

 as an article of food, and the peculiarly shaped ScyUarus arcln* 

 (Fig. Ill), which is also prized in the Mediterranean as a delicacy. 

 The bright red " Crayfishes," Panulirus and lasus, of the Australian 



FK;. 111. Dorsal view of ScyUarus arctus, 

 x \. (From tin original figure prepared 

 lor I'nile-vir \\Vldon.) 



FIG. 112. Embryonic area of developing 



Pal !n HI-UK i/niii/i-ii-iii-)iin. Al'. I. 1 >t alnlo- 



niinal segment: E, com] ml eye; A", 



median simple eye : I., upper lip : //, 

 lower lip; .!/. mandible ; .I/../, .I/-..'. 

 1st and 2nd maxillae ; M >/>.!. 1 st ma.xilli- 

 ]>ede ; T, 6th f a.ntepeiiull iinate thoracic 



a])peiida-e. , A Her ( laus.) 



coasts are also largely used ;is food. I'x-sidcs its peculiarity in 

 shape, /V. arctus has remarkable scales on the second aulennae in 

 place of Hagella. The larva hatches out as the so-called l'h\l]- 



, lined, or monochrome enldiir-pattcrii may lie ]ireseni, \\hieli is ultimately 

 Ly the nature of the environment, and does nt subsequently elian^e. In 



species of Hippaliite, and in Palaemon and <'r<niuii, only one aduli colour 

 pattern occurs. Thus If. varians, beside* reacting \<> li.^lit by its elin.maii.pli.- 

 possesses a permanent colour-pattern, \\Lieli is :il*o let' rmim-d by en\ir ...... ienl. 



