832 Mil. H. G. JACKSON ON TlUi: 



Colour. Mottled brown and yellow ; median yellow stripe from 

 head to tail ; legs yellow. 



Distribution. Caucabia, Crimea. 



Verlioeti's suspicion that his L. euxlnum can be brought into 

 relation with Budde-Lund's L. fracjile proves to be well founded 

 on further examination of Budde-Lund's material. I have no 

 hesitation in placing it as a synonym of that species. 



Variety. — L. fragile caucasium Verhoefi" (1918). Epimera of 

 thorax predominantly coloured with irregular brown marks. 

 Hind angle of tergite of 2nd somite with similar depressions to 

 1st tei'gite. Antennal flairellnm with 11 segments. 



.'{. LioiiHUM oiiACJiLK (Dana). (Text-lig. G.) 



i^tyloinscus (jracilis Dana (1856), p, 17(5. 



Li(fidiain tcuue Budde-Lund (1885), p. 258. 



Liyidiuhi yracilis Holmes (1904), p. 318; llichardson (1905), 



p. nOO {q.v. for other references). 

 fA(jidium (jracile Yerhoefl" (1918), p. 114. 



Leiif/lh : (S 7 mm., $ 9 mm. JJreadth : cT 2 n)m., § 3 mm. 



fSar/ace smooth and shining. Ifead. Frontal margin sinuate ; 

 median V sharply drawn out and produced to slight rostrum. 

 Transverse groove deep and short, reaching to inner edge of 

 eyes. Frontal grooves obsolete or very faintly indicated. Eyes 

 rather small and somewhat pear-shaped. Thorax. 1st somite 

 finished with bristles at regular intervals on lateral edges, none 

 on posterior margin. A deep lateral depression on each side 

 reaching hind border, No bristle group. Coxal-plate sutures 

 distinctly marked on last four somites in both sexes ; drawn 

 backwards on last three, somites only, the 5th somite little if at 

 all drawn back, Antennal tlagellum reaching back to hind 

 m.argin of 2nd somite'; with 12 segments. Uropods. Inner 

 process of base stout, slightly curved and about half as long as 

 base. Endopod by itself slightly longer than exopod ; com))ined 

 with inner process exceeds exopod by about one-sixth of tho 

 latter, Exopod about four times as long as inner pi-ocess. 

 Telsoit, with blunt postero-lateral angles moderately deeply 

 notched over uropods. 



Fleopods of d . 1st exopod with one long bristle ; 1st endopoil 

 with process moderately drawn-out and !)lunt, with 3 bristles ; 

 2nd endopod with snr.ill rounded lappet. 



Colour. IJrown ground ; brown median stripe ; mottled on 

 each side with yellow. Yellow stripe along and above sutures of 

 coxal plates, which are brown on each side. Legs yellow. J lead 

 mottled. 



J)iHtrihution. California, 8t. Clara ; Massett (British Columbia). 

 Sitka Island. San Francisco. 



The specimens in Budde-Lund's collection that he has identified 

 with L. (jracile Dana are from St. Clai-a (California). They 



