20 W. LlLLJEBORG, 



This being premised we proceed to give an account of such spe- 

 cies of the sub-family Lysianassina as belong to our Fauna, describing 

 somewhat more in detail those which are new to science or even additions 

 to our own Fauna. 



Gen. LYSIANASSA H. M. Edwards. 



Pedes trunci s. thoracici l:mi pans manu subrheliformi carentes, vngue 

 non fleocibili, seamento 6:to sive manu apicem versus attenuato ibidemque basi 

 unguis vix crassiore. Mandibulae tuberculo molari minimo. Laminae eccte- 

 riores maxillipedum tnaryine interiore noduloso vel laeviusculo. 



We have in Sweden and Norway only 3 species of that genus di- 

 stinguishable in the following manner. 



Lysianassa. ( tissum. ( pectinatim plicatSB ... 1. gpinioorms (A. Boeck). 



Segmentum ! J*"*"* 



° nranclnalcs . . . .' 



7:mum Cauda; ... ' I ... ■- ,;• nr ■■ x 



non plicatse 2. I ulih (Kroyer). 



non fissum, margine posteriore con- 

 l vexo 3. Costa:, M. Edwards. 



1. L. Spinicornis (A. Boeck). 



Jchnopus spinicornis, A. Boeck: Forhandl. ved de Skand. Naturfs 8:de 



Mode, 1860, pag. 645. 



Antenna; longte, inferiores superioribus longiorea. Scgnienta 2:dum 

 et 3:tium pedunculi antennarura superiorum brevissima, et segnientum l:mum 

 ejusdem pedunculi ad apicem infra aculeo armatum. Flagellum harinu an- 

 tennarum maris circit. 85 — 100, et feminae circit. 60 — 66 aiticulis brevibus 

 compositum, articulo l:mo ultimis duobus aiticulis pedunculi conjunctis lon- 

 giore, et intus circit. 23 paribus fasciculorum pilorum transversis pra'dito. 

 Flagellum appendiculare longum, aiticulis arc. 10. Flagclluni antennarom 

 inferiorum articulis circ. 80 — 120. 



.Mandihuhe acie obliqua, Qtrinqne dciiticulo obsoleto munita, processu 

 accessorio carentes. Tubciciiluin niolarc parvum , lvuYxum, acuminatum et 

 pilosum. Palpus magnua, segmento 2:do latiusculo, et 3:tio arcuate et ad 

 latus alteram pectinatim aculeate. Maxilhe l:mi paria ramo exteriore valido, 

 ad apicem aculcis magma, ex parte pectinatis, et pilia annate; ramo inte- 

 riore minore apice pilos duos gerente; et palpo biarticolato, apice tnmcato, 

 striate et aculeate. Maxilhe 2:di paria ramie anguatia et ad apicem acu- 

 leatia. Pedes niaxillarcs sive maxillipedea laminia ioterioribna brevibus ad 



