KONGL. SV. VET. AKADEMIKNS HANlJLINGAK. BAND. 22. N:o 7. ,397 



In 1836 GuÉKiN Méneville instituted tho new genus Friinno, wliich nanie is hcre 

 corrected into Eupriinno, because Primno was previously applied to a genus of Crustacea 

 by Rafinesque-Schmaltz in 1814. 



No new genus has subsequently been added to the faraily. 



The three genera are easily distinguished as shows tlie following table: 



A. The first four pairs of pera^opoda are simple, not prehensile, the fifth pair have 



a folding hand, the sixth and seventh pair are simple; the dactylus of the 



seventh pair is transformed 1. Eiipriiuuu. 



B. The first two pairs of pera3opoda are simple, the third, fourth, and fifth pairs are 



subcheliform, the sixth pair have a folding hand, and the seventh pair are 



simple with the dactylus transformed 3. Auchylomera. 



C. The first two pairs of pera3opoda are simple; the second, third, fifth, and sixth 



pairs are more or less subcheliform, the seventh pair are reduced, consisting 



only of the femur 3. Phrosina. 



Genus 1. EUPRIMNO, F. E. GUÉRIN MÉNEVILLE, 1836. 



Diagn. Caput ante leviter productum. Pedes percci parium quattuor anteriorum simplices, non pre- 

 hensiles. Pedes quinti paris manu replicata instructi. Pedes sexti paris simplices. Pedes 

 septimi paris corapleti; dactylus transforraatus. Pedes uri crassiusculi, laminares. 



The head is somewhat produced in front. The first four pairs of pe7'ceopuda are simple, not 

 prehensile. The fifth pair are provided with a folding hand. The sixth pair are simple. 

 The seventh pair are complete; the dactylus is transformed. The uropoda are compara- 

 tively thick and laminar. 



Syn. 1836. Primno, F. E. GUÉRIN MÉNEVILLE. — »Description de quelques genres 



nouveaux des Crustaoés appar- 

 teuant ä la famille des Hypé- 

 rines». Magasin de Zoologie. 

 e™» Aunée. Classe 7"*, p. 2. 



)) « H. MiLNE Edwards. 1838. Histoire naturelie des Aniraaux 



sans vertébres par J. B. 



P. A. de Lamarck. 2™"^ éd. 

 Torne b"^", p. 306. 

 » » 1839. » 3°"= éd. Torne 211, p. 370. 



1) B » 1840. Histoire naturelie des Crustaoés. 



Torne 3""% p. 81. 



» » A. White. 1847. List of the Specimens of Cru- 



stacea in tlie CoUection of the 

 Britisli Museum, p. 91. 



