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found by the "Siboga", but the original specimens of de Haan being still preserved in the 

 Leiden Museum I had an opportunity of affording some few informations about them. 



Stimpson seems to have been led astray by de Haan's description and figure, from 

 which the former author concluded, that the carapace in Sc. globosa is smooth, and the suture 

 between ischium and merus of the external maxillipeds is transverse, not oblique, and therefore 

 the species Sc. tiiberculata was established by the American author. In reality, however, in 

 Sc. globosa the carapace is by no means smooth, but studded with granules, and the ischium- 

 merus suture of the external maxillipeds is oblique. Koelbel already supposed the two species 

 to be identical. 



The body is very thick, convex, Dotilla-Vike.; the carapace is narrower than the diameter 

 of the body above the bases of the legs, so that the side walls are sloping outward. The 

 external orbital angles are defined posteriorly by an emargination; the distance between these 

 angles is only slightly more than the length of the carapace, but seems to be much greater, 

 owing to the very oblique supra-orbital margins. The front is obliquely bent downward, 

 elongate, spatuliform, rounded at antenor margin, with a shallow longitudinal groove, that is 

 not continued backward on the mesogastric region ; at either side of this sulcus the front is 

 somewhat rugose. The grooves defining the gastric and cardiac regions are present, though 

 faint; the cervical groove is interrupted in the middle, and each halfis curved somewhat back- 

 ward; hepatic and branchial regions are crossed by irregular and short, transverse grooves, the 

 regions themselves are very declivous and everywhere studded with little prominent, 

 granular tubercles, widely apart, and most crowded on the hepatic regions. Some of these 

 tubercles are setiferous. Koelbel remarked, that in young specimens, as might be expected, 

 the granulation of the gastric area is scarcely indicated, but becomes more pronounced with 

 advancing age, when also the cardiac region becomes granular. The lateral margins of the 

 carapace are ciliated and diverging backward; they are accompanied along their course by a 

 sulcus, that immediately behind the emargination following the external orbital angle is concealed 

 in upper view of the animal by the bulging lateral part of the hepatic region. Immediately 

 beneath the lateral margin of the carapace, there is another longitudinal sulcus, disappearing 

 backward, but distinct anteriorly and continued as a narrow groove below the infra-orbital 

 margin, which itself is finely granulate. The pterygostomial and subbranchial region are entirely 

 covered with large, setiferous granules, and the former region is defined posteriorly by a vertical 

 sulcus. Epistome distinct. Basal joint of antennulae, at either side of the front, clypeiform, 

 somewhat inflated and partly concealing the bases of the eye-stalks, which latter are rather short 

 and thick, gradually widening distally. The borders of the buccal cavity are much arcuate, and 

 the lateral part, that is defined anteriorly by a deep emargination, is curved upward and 

 accompanied by a deep parallel groove. External maxillipeds strongly bulging, as in Dotilla. 

 but merus shortly triangular, with the sides arcuate, and somewhat shorter than the ischium-, 

 suture between them oblique, not transverse, as de Haax depicts it: both ischium and merus 

 very broad, operculiform ; exognath short and weak; ischium with a longitudinally-oblique row 

 of hairs near outer margin, and with a patch of hairs below it; three last joints of maxilliped 

 covered with hairs, carpus the longest and most bulky, with a brush of stiff, feathered hairs 



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