28 



OUTLINES OF NATURAL HISTORY. 



Fig. 12 —The common Lobster (ffomarns vulgaris), viewed from below 

 a The lesser antenna; ; a' The greater antennte ; n The last pair of foot- 

 jaws ; c The great claws, or first pair of legs ; d, e,f,g The last four pairs 

 ot walking legs ; h, i, j, k, I. m The six pairs of abdominal appendages 

 the last five being "swimmerets," and the last of all being greatly ex- 

 panded ; t The last segment of the body, without appendages. 



