Illustration of a Species of ? Phyllosbma. 



459 



Art. III. Illustrations of a Species of ? Phyllosbma Leach and 

 Latreille, or of an undescribed Genus allied to Phyllosbma ; and 

 ofSquilla DesmarestW. Risso ; as observed in a living Individual 

 of each, taken on the Coast of Guernsey, By F. C. Lukis, Esq. 



Since the date of the publication of Dr. Leach's Mala- 

 costraca Podophthalma Britannia?, the list of British Crustacea 

 has been augmented by the addition of several genera. Fig. 

 38. represents a genus additional; andit may prove a genus 

 not hitherto described. 



Class Crustacea, Division Stomapddia Cuvier and Latreille t Legion I. 

 Podophthalma, Order 2. Macroura Leach, Genus ? Phyllosdma Leach 

 and Latreille y Species, {fig. 38.) 



a, A representation of the animal, exactly of the natural size, and as seen walking ; the aspect 

 ventral. 6, The aspect dorsal, c, The mouth and sternum, somewhat magnified, d, An- 

 tennas and eye, somewhat magnified, e, Abdomen, magnified. 



The singular animal represented in the figure was found 

 alive, here, lately, and brought to me, from which I have taken 

 the annexed figure and description. 



The whole body perfectly transparent, and resembling a 

 plate of the purest mica; depressed, and composed of two 

 distinct portions. 



1st, The carapace, bearing the eyes and antennae (d), in the 

 same manner as in the genus Phyllosoma of Leach and La- 

 treille, attached by the posterior edge to, and covering the 

 front of, the thorax and mouth. (The mouth and sternum are 

 represented, and somewhat magnified, at c.) Margin recurved 

 or thickened, the sides slightly bending upwards. Eyes, two 



