CANCROID E A. 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 praeorbital lobe is long, and but little raised. The hand has 

 strong costae, 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 costae are without spines. 



Thalamita crenata, Edwards, i. 461. 



Thalamita SPINBIANA. 



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 

 prazorbitali elongate- et valde prominente. Articuhis antennm externw 

 lmns prodongus, crista irregidariter spinulosd. Pedes antici valde 

 armati, carpo b-spinoso, rnanu 7—9-spinosd, (margine superno 4—5- 

 spinoso), costis dudbus exterms e spimdis obsoletis sefiatis instructis. 



Carapax unusually transverse, median region crossed by raised lines, 

 anterolateral margin five-dentate, the teeth subequal, long, arcuate 

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

 prseorbital 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 costae made up of series of obsolete 

 spinules. 



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

 under view showing crest of basal joint of outer antennae. 



Feejee Archipelago, Pacific Ocean, 



