26 
ZOOLOGY OF THE VOYAGE OF H.M.S. SAMARANG. 
with three rounded tubercles, and forked anteriorly, leaving a depressed, triangular interval ; 
lateral edges rather conspicuously crenated, the crenations flattened and rounded ; latero- 
posterior angles ending in a flattened, triangular, rather obtuse, spiny process ; hind part of 
carapace with a strong spine, directed backwards and outwards, slightly tuberculiferous, and 
continued in a strong ridge upon the posterior portion of the branchial region ; another 
smaller spine, situated nearer the middle line, likewise strongly carinated, leaving a depressed 
space between it and the former spine ; three small tubercles in the median line, one central, 
and one on each side. 
Front but little produced, rounded anteriorly, with the margin slightly denticulated. 
Fore-legs about twice the length of the carapace, third and fourth joints with the edges 
armed with rounded tubercles ; fifth joint smooth, with the upper angular edge tuberculi- 
ferous. 
Hab. China Sea ; coast of Borneo. 
In the living state, this singular species is of an olive-green colour, with the fore-legs of 
a light pinkish-brown, and the under surface of a slate colour. 
2. LAMBRUS LAMELLIFRONS, Adams 8f While. (Tab. V. Fig. 1.) 
Thorace longiore quam latiore, tribus majusculis tuberculis in parte posteriore superficiei superions ■ 
una in medio et una ad utrumque latus ; lateribus thoracis in medio crenatis ; latitudine thoracis 4| lin., 
longitudine 5 j lin. 
Chelis longissimis. 
Hab. Insulas Philippinas. 
Carapace longer than wide, with three rather large protuberances on the hinder part of 
the upper surface, one in the middle, and one on each side ; sides of carapace, about the 
middle, crenated. Breadth of carapace four lines and a half; length five lines and three 
quarters. 
Fore-legs very long. 
Hab. Philippine Islands. 
3. LAMBRUS TURRIGER, Adams $ White. (Tab. V. Fig. 2.) 
Thorace longiore quam latiore pentagono paululum producto, in fronte acuminato. Superiicie 
superiore quatuor spinis elevatis, crassulis et ad extremitates obtusis ; prima inter anteriorem et posterio- 
rem partem thoracis, sursum et paululum retrorsum directa; altera post multo longiore; tertia ad 
utrumque latus alterius in posteriore thoracis marginc ; in medio duabus spinis retrorsum et paululum 
sursum directis; prima et altera spinis anterioribus sublongis; tertia in medio thorace longa, ver- 
ticali, et subacuminata; spinis in elevato tuberculo regionis branchialis positis, longis, crassis, erectis 
et paululum extrorsum retrorsumque directis ; tota superiicie thoracis obtusis subconicis tuberculis obsita. 
Latitudine thoracis vix 4 linearum ; longitudine vix 4-i- Jinearum. 
Fronte parva, valde depressa, breviuscula, subobtusa ; in medio profunde concava, parvo dente ad 
utrumque latus. 
Chelis longissimis pro magnitudine corporis, tuberculis verrucosis, lsevibus, ad latera rotundatis, 
in cristis angularibus spinosioribus. 
Pedibus posterioribus gracillimis, lsevibus, supra et infra rotundatis, unguibus longis, tenuibus, paululum 
depressis et acutissimis. 
Hab. Insulas Philippinas. 
