REPORT ON THE STOMATOPODA. 27 



carina? which are contiuucd forwards as far as the rounded angles. Between these 

 marginal ridges the dorsal surface of the rostrum is smooth, without a median carina, 

 with the posterior half pigmented (in the alcoholic specimen) and separated by a 

 semicircular line, convex in front, from the anterior colourless half. Antero-lateral 

 angles of carapace ending in very short acute spines ; postero-lateral angles rounded and 

 not prominent, and without a marginal notch. The carapace has a median longitudinal 

 carina which is very slightly raised, although its dark colour renders it conspicuous. It is 

 bifurcated at its anterior end and is interrupted at the transverse cervical suture, behind 

 which it is bifurcated to its posterior end, where the two divisions meet in a round median 

 tubercle on the posterior edge of the carapace. A lateral carina, marked with dark 

 pigment, runs from the antero-lateral spine on each side nearly parallel to and close to 

 the lateral edge of the carapace, as far as the postero-lateral angle, on which it ends 

 abruptly, without uniting with the transverse pigmented ridge which fringes the posterior 

 border of the carapace. 



A second pigmented carina runs backwards from the antero-lateral angle for about 

 half the length of the carapace, internal to the submarginal keel, and nearer to it 

 anteriorly than posteriorly. At its posterior end it is about half way between the edge 

 of the carapace and a strongly marked convex ridge which lies in the longitudinal gastric 

 suture, between the elevated convex median gastric area and the lateral area. The 

 gastric sutures and tlieir ridges are slightly divergent posteriorly, and they are interrupted 

 at the transverse cervical suture, behind which the cardiac sutures are marked by similar 

 elevated ridges, which are slightly incurved at their anterior ends, behind which they are 

 slightly convergent posteriorly. External to the cardiac sutures there is, on each side, a 

 short pigmented carina, wdiich fuses with the pigmented border of the posterior edge of 

 the carapace, which latter is slightly emarginated, with a short acute median tooth. 



The second, third, and fourth thoracic somites have each a median slightly impressed 

 white line, and on the sides of this a pair of pigmented submedian longitudinal carinse, 

 which are very short on the second, and which are clearly marked by their dark colour, 

 but are scarcely elevated above the general surface. The fifth thoracic somite has no 

 impressed median line, and the submedian carinas are like those on the preceding somite. 

 The submarginal carinje of the thoracic somites are scarcely elevated, and they are 

 marked by dark pigment, as are also the posterior borders of all the thoracic and 

 abdominal somites. The lateral processes of the second, third, and fourth thoracic 

 somites are bilobed ; the anterior lobe of the first is elongated, curved forwards and 

 acute, while the posterior lol)c is much shorter and subacute. On the lateral process of 

 the third thoracic somite the anterior lobe is shorter and subacute, and on the fourth 

 somite it is still shorter, while in both the third and the fourth somites the posterior lobe is 

 the larger, and its postero-lateral angle is acute on the third, and subacute on the fourth. 

 The fifth thoracic somite has only a single subacute lobe on each side. The first five 



