24 
ZOOLOGY OF THE VOYAGE OF H.M.S, SAMARANG. 
than from above downwards ; the cornea of the eyes projecting beyond the outer margin 
of the front, nearly filling up the orbital cavities, the upper margins of which are salient. 
The latero-anterior borders of the carapace armed with a single, strong, flattened process ; 
conical, trenchant, broad at the base, the outer edge slightly elevated, with the point 
curving forwards. The first joint of the external antennae very large, long, and cylindrical, 
antennae covered by the rostrum. Epistome very nearly similar to that of Acanihonyx. 
The chelae, shorter than in that genus, are armed with flattened, conical, slightly obtuse 
spines. The second joint triangular, with an external and internal conical spine, the 
external very long, and directed upwards and forwards ; the third joint armed with three 
spines ; one superior-posterior, and directed forwards ; two anterior-lateral, directed outwards 
and rounded at their extremities ; the fourth joint crested with a sharp, flattened spine. 
The legs short, thick, very much compressed; the third joint with two large, flattened 
conical spines on the front, directed forwards ; the fourth joint with but one flat, spinous 
process on its anterior part ; the fifth joint enlarged and furnished posteriorly with a sharp, 
flat, curved spine, directed backwards. 
This beautiful genus is very apathetic when alive ; in that respect resembling Lambrus. 
In the system it is not far removed from Acanihonyx and Huenia. The description is from a 
female. 
1. ZEBRIDA ADAMSII, White. Tab. VII. Fig. 1. 
Colore subcarneolo, fasciis rufo-fuscis; lined intermedia antice bifurcata, deinde in basin inte- 
norem cornuum rostri obsoleta, postice ad ultimum abdominis articulum pertinente, lined utrinque 
tenui duplice paululum undulatd ; duabus latis lincis pertinentibus ab apice spinarmn rostri, in ultimo 
abdominis segmento concurrentibus, in medio tliorace angustatis; lined extra tenui, duplice; extra 
banc lineam fascia lata, paululum curvatd, ad postcro-exteriorem thoracis angulum subito desinente; 
latiore fascia rufo-fuscd ad basin spinarum antcro-lateralium. Duabus latis, rubro-fuscis fasciis in 
omnibus pedum articulis, subdiagonaliter trans articulum directis; und lata fascid eodem colore in 
quarto et quiuto articulis. Superfieie inferiore colore paullo intcnsiorc. Extcriorc parte abdominis 
segmentorum puncto circulari subnigro. Totd anirnalis superfieie lscvi, sine setis, dura, politd et porcel- 
land; oculis nigris. 
Hab. Borneo. 
In colour this species is of a light, delicate pink, with dark liver-coloured markings. 
There is a central line bifurcated anteriorly, where it is lost on the inner bases of the horns of 
the rostrum, reaching posteriorly to the last joint of the abdomen, and having external 
to it a fine, double, somewhat waved line ; extending from the apex of the rostral spines, and 
meeting at the last abdominal segment, arc two broad lines, narrowed in the middle of the 
carapace ; external to these is a fine double line, and on the outside of this is a broad, some- 
what curved stripe, ending abruptly at the postero-external angle of the carapace ; and at the 
base of the antero-lateral spines is another rather broad linear mark of the same dark liver- 
colour. The third joint of all the legs has two broad, dark, red-brown bands, directed some- 
what diagonally across the joint ; the fourth and fifth joints have one broad mark of the same 
colour. The under surface is of a somewhat darker colour. On the outer part of the 
