| OCR Text |
Show 1900.] FROM SINGAPORE AND MALACCA. 731 Atergatis nitidus, roseus, scrobiculatus, Icevic/atus, A. M.-Nouv. Arch. Mus. t. i. pp. 239 scq. (1865). Atergatis roseus, Kossmann, Zoolog. Ergebn. pp. 19-21 (1877). Atergatis Icevigatus, Henderson, Trans. Linn. Soc, Zool. vol. v. p. 352 (1893). Hab. Singapore and Malacca ; littoral. Five males. Kossmann has shown that probably all the above-named species are varieties of A. roseus. Of these specimens one is the var. scrobiculatus, with a slightly punctated carapace, generally red but with a very distinct white border. Two others belong to the var. alba (Kossm.), although not perfect examples of it, for a whiter margin may still be distinguished from the white carapace, and the latter is still slightly punctated. The fourth and fifth are respectively more and more intermediate between var. alba and var. scrobiculata, one of them more resembling the former, the other the latter. The Singapore specimens are the two examples of var. aZ6a. Dim. 6* 10-5x6-5. 3 10-25 x 6-25. d* var. scrobic. 11-75 x 7. 0* var. alba, 11-5 X 6-5. o* Yar. alba, 6-5 x 4'5. Breadth taken is greatest breadth. XVI. Genus CARPILODES Dana. 28. CARPILODES MARGARITATUS, A. M.-Edw. Carpilodes margaritatus, A. M.-Edw. Nouv. Arch. Mus. t. ix. p. 182, pi. v. f. 2 (1873); Henderson, Trans. Linn. Soc, Zool. vol. v. p. 353 (1893). Hab. Malacca; 15 fms. One female. Agrees with the descriptions of M.-Edwards and Henderson: like those of the latter, it is without the brilliant colours figured by M.-Edwards although still of a general red hue. Dim. 24x17. 29. CARPILODES SOCIUS, sp. nov. (Plate XLIV. fig. 4.) Hab. Singapore ; 8-10 fms. Two males and a female. Carapace much broader than long, everywhere smooth to the eye, but minutely punctate viewed under the lens, posteriorly nearly flat, but very declivous anteriorly towards the front and anterolateral margins. Protogastric lobe divided by a groove which does not quite reach the branchio-hepatic groove. Epigastric lobes clearly defined, having a well-marked transverse groove behind as well as in front of them. Mesogastric lobe prolonged a little way between them; the two grooves enclosing this lobe are not prolonged backwards very far. Groove between cardiac and gastric regions less pronounced than the others. Front notched in the middle, and sinuous, so as to form four lobes, the two median being large and broad, and the external, forming also the internal angle of the eye, small and conical. Upper margin of the orbit very much thickened in its internal half. |
