oQr> CRUSTACEA. 



Kraussia rugulosa (Krauss), Dana. 



Carapax fere orbicidcdus, pares transversus, /route inter-ante nnali bito- 

 bato, lobis parce excavatis, 9-10-dentieulatis et elongato-ciUatis ; mar- 

 gine antero-Iaterali remote b-dentlcidatis denticulis sphuformibus et 

 inter denticulos denticulis aliis miuutis, paulo cUiatis, superficie cara- 

 pacis inconspicue areolatd, lineis transversis interruptls crenidatis 

 notatd. Manus extus partiui subtiliter crenidato-lmeolata, digito supe- 

 riore tribus costis crenidatis superne notato, una interiore obsolescente. 



Carapax nearly orbicular, sparingly transverse, front between the 

 antennae bilobate, the lobes slightly excavate, and about nine- 

 toothed, long ciliate ; anterolateral margin remotely five-toothed, 

 and between these teeth other minute teeth, also somewhat ciliate ; 

 surface of carapax indistinctly areolate, but marked with interrupted 

 transverse crenulate lines. Hand in part crenulato-lineolate, upper 

 finger having above three longitudinal crenulate ridges, the inner 

 one obsolescent. 



Plate 19, fio;. 1 a. female, enlarged two diameters : b, enlarged view 

 of front; c, outer maxilliped ; d y hand, enlarged three diameters; e, 

 tarsus of third pair, enlarged; /, abdomen of female, enlarged. 



Sandwich Islands, island of Maui. 



The specimen described is a female. Length of carapax, five and 

 a half lines; breadth, six and a half lines. The carapax shows faint 

 indications of the median areolet. The ciliation of the front is quite 

 as long as the front margin of either lobe; the eilia3 are easily broken 

 off, and were probably mutilated in Krauss's specimen, as they are not 

 mentioned by him, nor represented in his figure. The lateral margin 

 is furnished with some hairs, and besides there are a few on the sur- 

 face near this margin. The posterior legs are rattier stout, the joints 

 broader for the length than in the figure of the South African species 

 by Krauss. The third joint of the fifth pair is hardly twice as long 

 as its breadth. The fourth joint of the outer maxillipeds is furnished 

 with very long hairs on the anterior margin, two or three times as 



