22 G. 0. Sårs. 



Mandibulæ bene evolutæ, rame insisivo porrecto, processu 

 molari brevi et crasso, apice truncato cristis hispidis regulanter 

 sculpto. 



Epignathus maxillarum Imi paris setis pluribus terminatus ; 

 maxillipedum sat magnus, semilunaris, marginibus dense ciliatis, 

 apice tenuiter exserto. 



Chelipedes feminæ robusti, manu ovata, digitis intus tuber- 

 culatis; maris multo majores, digitis subforcipatis. Pedes ambu- 

 latorii Imi paris a ceteris paulo discrepantes, digito subulate, 

 recto; paria seqventia illis breviora, ex parte spinosa, dactylo 

 hamato, in paribus 3 posterioribus fortissimo et pectinatim 

 dentato. 



Pleopodum solummodo 3 paria adsunt, magna, trunco crasso 

 setoso, lamellis latis et dense setiferis. 



Uropoda brevia, simplicia, ramo singulo bi-vel triarticulato. 



Marsupium feminæ laminis solummodo 2 permagnis seg- 

 mento libero 4to affixis formatum. 



1. Tanais vittatus, Rathke. 



Crossurus vittatus, H. Rathke, Beitrage zur Fauna Norwegens, 



Acta Leop. Vol. XX, pg. 39, tab. 1, fig. 1—7. 

 Tanais tomentosus^ Krøyer, Naturh. Tidsskr. Bd. IV, pg. 183. 



— — Gaimard's Voyage, PI. 27, fig. 2, n — q. 

 Tanais vittatus, Lilljeborg, Bidrag til kännedomen om de inom 



• Sverige och Norrige förekommande Crustaceer af Tanai- 

 dernas familj, pg. 24. 



— — Sp. Bate & Westwood, British sessile eyed Cru- 

 stacea, II. pg. 125. 



Tanais vittatus, Harger, Report on the marine Isopoda of New 

 England pg. 418, PL XIII, fig. 81, 82. 

 Charact. spec. Corpus feminæ sat i^obustum, vix qvinqvies 

 longius qvam latius, segmento cephalico sat magno ad latera 



