134 MESSES. NORMAN AND 8TEBBING ON THE 



Cryptocope voringii, G. O. Sars ; which he had previously briefly characterized, and which have 

 been referred to in the foregoing memoir. 



3. Lastly, we have this day received from the author a copy of Professor Sars's latest work, 

 ' Nye Bidrag til Kundskaben om Middelhavets Invertebratfauna. — III. Middelhavets Saxisopoder 

 (Isopoda Chelifera)/ 1886. The Mediterranean Chelifera, wliich had been first made known in 

 his 'Revision af Gruppen Isopoda Chelifera' (1880), and already mentioned by us, are here fully 

 described and illustrated in fifteen plates. 



The description and figures given in this work enable us to say positively that the Apseudes 

 which we have described under the name lunarifrons, and which we doubtfully referred to A. 

 echinatus, G. O. Sars, is that species, and om- own name must consequently give place to the 

 earlier one of Prof. Sars. 



Prof G. O. Sars makes it a character of the genus Sphyrapus that the second gnathopods are 

 not furnished with a palp, such as is present in Apseudes; but our own observations do not agree 

 with his, inasmuch as in the type species Sphyrajms malleolus, and also in S. tudes, a palp is 

 unquestionably present on this limb. 



EXPLANATION OF THE PLATES. 



PLATE XVI. 



Apseudes latreillii (M. -Edwards), viewed dorsally. 



L, 6 . „ „ male, viewed laterally.. 



ci.s. ,, „ upper antenna. 



ci.i. ,, „ lower antenna. 



m. ,, „ mandibles. 



mx\ ,, „ first maxilla. 



mwjj. „ „ maxilliped. 



(/>i^ d . „ „ first gnatliopod, male. 



(f'i'' ? • ,, „ first gnathopod, female. 



ffti'- „ „ second gnathopod. 



prp^- „ „ third perseopod. 



WI>^- » » last peraeopod. 



p^l^- „ „ pleopod. 



PI- ^- 55 5, pleon, viewed from below. 



I. D, 



PLATE XVII. 



I. D, 



Apseudes spinosus, M. Sars, female, viewed from above. 

 ^- )) 5» side view of carapace and gnathopods of male. 



(i-i- ,■> „ lower antenna. 



</^^- )» „ hand of first gnathopods of male. 



I'^F • » j» third pergeopod, extremity. 



