J.n the course of my study of the stränge group of Am- 

 pliipoda Hyperidea I have met in the literature, with some 

 generic names, wliich hy different carcinological authors have 

 been referred to different genera, owing either to the short 

 and imperfect original descriptions or to the extreme rarity 

 of the animal once described. I shall try in this paper to 

 clear up the synonymy of some few of these names, leaving 

 a more exhaustive treatment of the very interesting sixbject to 

 the larger monographical essay on the Hyperidas, which I am 

 now preparing for publication. 



Lanceola. Say. 



In the year 1818 the excellent American zoologist Thomas 

 Sat ^) proposed the name Lanceola for a big amphipodous 

 crustacean, captured in the Gulfstream by Captain Hamilton. 

 It was only with some hesitation that he constructed a new 

 genus for it, as he knew only one sex of the animal, the two 

 specimens he got being both females. But the description he 

 gave was a very good one for that time, and I do not think 

 I say too much, when I proclaim it as the first accurate de- 

 scription evcr given of any animal belonging to the Amphi- 

 poda Hyperidea. Nevertheless following authors failed to recog- 

 nize the animal, and the genus has been regarded as syno- 

 nymous with the much låter founded genera Hyperia (1823) 

 or Vibilia (1830). H. Milne-Edwards in 1830 2) considered 

 Lanceola synonymous with Hyperia, Latkeille, and although 

 he admitted the priority of Say's name, he maintained that 



') JÄn account of the Crustacea of the United States», in »Journal of the 



Academy of Natural Sciences at Philadelphia». Vol. 1, part. 2. Phila- 



delphia 1818. Pag. 347. 

 -) »Extrait des recherches poiir servir å THistoire naturelie des Crustacés 



amphipodes». in lAnnales des Sciences naturelles». Torne 20. Paris 



1830. Pag. 387. 



