KONGL. SV. VET. AKADEMIKNS HANDLINGAR. BAND. 22. N:u 7. 



299 



4. EUTHE31IST0 GÅIDICHAIDII, F. E GLEKLX, 1825. 



Pl. XIII, ficr. 4-4—46. 



Euthemisto Gaudichaudii, GrÉRix. 

 Facsimile from GcÉKix, Mém. Soc. Hist. Dat. Torne ime^ pl. 25, C, lig. 1. 



Fig. 1. The animal from the side. 2. The first pair of peraeopoda. 3. The second pair. 4. The fifth pair. 



5. The urus. 



Diagn. Corpus carinatum, interdum serratum. Femui' j^^dum percei parium trium ultimorum an- 

 gustum, ter longius quam latius. Tibia peduni qiiinti paris quam genu plus quam duplo 

 longior, post pauUulo producta: dactylus levis. Pedes iiri primi paris pedes secundi paris 

 non superantes; pedunculus ramo interno longior; ramus externus peduru secundi ac tertii 

 parium dimidio rami interni paullo longior. Telson segmento ultimo uri paullo brevius, pe- 

 dunculo pedum uri ultimi paris latius ac quartam partem longitudinis pedunculi ejusdem 

 fere squans. 



The bodrj is carinated, and sometimes serrated. The femur of the last three pairs oi perwo- 

 poda is narrens-, three times as long as broad. The tibia of the fifth pair is more than 

 twice as long as the genu: the lower hind corner is only a little produced: the dactylus 

 is smooth. The first pair of uropoda do not attain the apex of the second pair; the pe- 

 duncle is longer than the inner ramus: the outer ramus of the second and third pairs is 

 a little more than half as long as the inner. The telson is a little shorter than the last 

 coalesced ural segment: it is broader than, and not fully a lourth part as long as, the 

 peduncle of the last pair of uropoda. 



Colour. Eed, or light red, with the rami of the urupoda deep red. 



Length. 15 — 33 mm. 



Hab. The Antarctic regions: the Southern temperate regions (D. ~Sl.: F. M.: K. M.: P. M.; 

 S. M.; U. M.)^ 



Syn. 1825. Themisto Gaudichaudii, F. E. GUÉEIX. 



»Uroptére». Encyclopédie 

 Méthodique. Histoire na- 

 turelle. Tom 10™', p. 774. 



