28 
ZOOLOGY OF THE VOYAGE OF Ii.M.S. SAMARANG. 
5. LAMBEUS PISOIDES, Adams Sf White. (Tab. V. Fig. 4.) 
Thorace seque longo ac lato, triangulari, marginibus lateralibus spinis depressis, rotundatis, tuberculi- 
fonnibus armatis ; media ct brancliiali regionibus valdo eminentibns et convexis ; regione brauchiali products 
ad utrumquc latus in longam, validam, acuminatam spinam retrorsum et extrorsum dircctam, et pavdulnm 
prorsum inclinatarn; totiT superficie thoracis obsita depressis, lsevibus circularibus, verrucosiformibus 
tubereulis, aliis alios magnitudine longe superantibus ; serie elevatorum tuberculoram in posteriore parte 
longitudinals lateralis sulci, medium a brancliiali regione dividends, carinam efficientis elevatam desinentem 
in spinam subobtusam, brevern, retrorsum, extrorsum, et paululum deorsum clirectam. 
Fronte acuta, productiore, ntrinque dentata, angustiore, profunde sulcata in medio, in spinam valde 
dopressam triangularem desinente. 
C/ielk longissimis pro magnitudine thoracis, pari longitudine et crassitudine ; brachio hevibus, 
depressis tubercuhs supra obsito ; marginibus antice et postice armatis compluribus longis et brevibus 
spinis alternatim dispositis ; superficie inferiore angulo obtuso, externe Itevi, interne granulata ; carpo tuber- 
culis verrucosis supra obsito, et externe armato tribus, validis, obtusis, rccurvatis spinis ; manu triangulari, in 
superficie superiore hevibus, rotundis tuberculis obsita, interne et in superficie inferiore minutim granulata; 
margine externo valde carinato, et quinque eminentibus subcurvatis spinis armato, serie parvorum, obtu- 
sorum, tuberculifomuum processuiun alternatim disposM ; in superficie interiore serie parvarum, obtusarum 
proximo appropiuquantium spinarmn. 
Pedibus posterioribus parvis, tenuibus, infirmis, lsevibus marginibus superioribus obtusis ; unguibus 
longis, acutis, depressis, villis lanosis fimbriatis ; corpore et clielis subfuscis, majusculis subrubris maculis 
distinctis. 
Hab. Insulas Philippinas. 
Carapace about as long as wide, triangular, lateral borders armed with flatteued, 
rounded, tubercle-shaped spines ; middle and branchial regions very prominent and convex, 
branchial region produced, on each side, into a long, strong, and pointed spine, directed 
backwards and outwards, and inclined slightly upwards ; entire surface of carapace covered 
with flattened, smooth, circular, wart-like tubercles, varying in size, some being considerably 
larger than others ; a row of elevated tubercles on the posterior portion of the longitudinal 
lateral groove which divides the middle from the branchial region, forming an elevated ridge 
which terminates in a somewhat obtuse, short spine, directed backwards, outwards, and a 
little downwards. 
Front acute, rather produced, toothed on each side, somewhat narrowed, deeply chan- 
nelled in the middle, and ending in a considerably -depressed triangular spine. 
Fore-legs very long in proportion to the size of the carapace, and equal in length and 
thickness ; third joint covered above with smooth, flattened tubercles, the margins before and 
behind armed with numerous, long and short spines arranged alternately, lower surface bluntly 
angled, smooth externally, granulated internally; fourth joint covered above with warty 
tubercles, and armed externally with three strong, obtuse, recurved spines ; fifth joint trian- 
gular, covered with smooth, round tubercles on the upper surface, finely granulated internally, 
and on the under surface, with the external margin strongly keeled and armed with five 
prominent, slightly-curved spines, finely denticulated on their edges, and alternating with a 
row of small, blunt tubercle-shaped processes ; on the inner surface a row of small, blunt, 
closely-approximated spines. 
