KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 21. N:0 5. 



15 



5. TYRO LONGIPES, DANA, 1850. 



Diagn. Caput rostratum, superne depressum. Antenna' primi paris corporis fere longitudine, subulatse. 

 Pedes pereii quinti paris corpore non breviores, femore longissimo post minute spinoso, 

 apice in spinam producto. Pedes septimi paris dimidio pedum quinti paris longiores. 

 Segmenta plei duo antica angulis posticis acutis, non truncatis. Segmenta uri duo ultima 

 libera non coalita. Pedes uri lati, pedes primi et tertii parium pedibus secundi longiores. 

 Pedes tertii paris ramum externum longum, dimidium longitudinis rami interni a?quan- 

 tem, ferunt. (?) 



The head is rostrate, depressed above. The first pair of antenna; are about as long as the 

 body. The fifth pair of pereiopoda are as long as the body; the femur is very long, 

 minutely spinulous along the posterior margin, apically produced into a spine. The 

 seventh pair are longer than half the fifth. The lateral parts of the pleonal segments with 

 the posterior corners pointed, not truncated. The last two ural segments are free, not 

 coalesced. The uropoda are broad, those of the first and third pairs reach longer than 

 those of the second pair. The third pair are provided with a large exterior ramus, 

 equalling half the length of the interior ramus. (?) 



Ti/ro longipes, Dana. 

 Facsimile from Dana. V. S. Expl. Exp. Oust, II, pi. 55, fig;. 7. 



Colour. The pereion brownish, the rest of the body red. 



Length. 12 — 16 mm. 



Hal). ..Pacific Ocean, Lat. \8 9 10' S. Long. 126° W.» (Dana). North Pacific (Streets). 



Syn. 1850. Clydonia longipes, DANA. 



Proc. of the Amer. Acad, of Science and 

 Arts. Ser. 2. Vol. 9, p. 19. 

 1852. United States Exploring Expedition. Cru- 

 stacea. Vol. 2, p. 835, pi. 55; fig. 

 7 a— b. 

 Spence Bate. 1802. Catal. Aniph. Crust. Brit. Museum, p. 284; 



pi. 47, fig. 9. 



