CANCROIDEA. 283 



Feejee Archipelago, Pacific Ocean. 



Length of carapax of a male, twelve and a half lines; breadth, 

 eighteen and a half lines; ratio of length to breadth, 1 : 1-48. The 

 crest of the base of the outer antennae in this species is finely and 

 evenly denticulate, the teeth being rounded granuliform. Of the six 

 interantennary front teeth, the outer is as broad as the next adjoin- 

 ing; the prseorbital lobe is long, and but little raised. The hand has 

 strong costas, and above, there are five spines, two on the upper edge, 

 two on a costa parallel with it, and one basal, adjoining the articula- 

 tion ; the other costse are without spines. 



Thalamita crenata, EDWAKDS, i. 461. 



THALAMITA SPINIMANA. 



Carapax valde transversus, regione mediand lineis elevatis intersectd, 

 margine antero-laterali ceque 5-dentato, dentibus longis, acutis, cur- 

 vatis, lobis frontalibus prominentibus, secundo latiore quam tertius, lobo 

 prceorbitali elongate et valde prominente. Articulw antennae externce 

 \mus prcelongus, cristd irregulariter spinulosd. Pedes antici valde 

 armati, carpo Q-spinoso, manu 7-9-spinosd, (margine superno 45- 

 spinoso), costis dudbus externis e spinulis obsoletis seriatis instructis. 



Carapax unusually transverse, median region crossed by raised lines, 

 antero-lateral margin five-dentate, the teeth subequal, long, arcuate 

 and acute ; lobes of front prominent, the second broader than third, 

 prjBorbital lobe elongate and very prominent. First joint of outer 

 antennae very long, crest irregularly spinulous. Anterior feet 

 armed with many spines, the carpus with six spines and some spi- 

 nules, the hand with seven to nine spines above (four to five of 

 them on upper margin) and two costse made up of series of obsolete 

 spinules. 



Plate 17, fig. 8 a, carapax, natural size; b, outside view of hand; c, 

 under view showing crest of basal joint of outer antennae, 



Feejee Archipelago, Pacific Ocean, 



