1899.] A. Alcock — Carcinological Fmma of India. 13 



1 . Carcinus m uanas, ( Linn. ) . 



Cancer marinus sulcatus, Rumph, Amboinsch. Raritcitk. pi. vi. fig. O. 



Cancer mxnas, LinnsBus, Fauna Suecica p. 492; Mas. Ludov. Ulric. p. 436; and 

 Sysfc. Nat. (xii) I. p. 1043 : [" Pennant Brit. Zool. IV. p. 3, pi. iii. fig. 5 " sec. Milne 

 Edwards] : Baster, Naturkundige Uitspanningen Zeeplanten en Zee Insekten, 

 Haarlem 1765, II. pi. ii. figs. 1-3 : Herbst, Krabben, I. ii. 145, pi. vii. fig. 46 : Fabri- 

 cias, Ent. Syst. II. p. 450, and Suppl. p. 334 : Bosc, Hist. Nat. Crust. I. p. 173, pi. 

 iii. fig. 1 : Latreillo, Hist. Nat. Crust. V. p. 363 : Risao, Hist. Nat. Crust. Nice, p. 12 : 

 Lamarck, Hist. Nat. Anim. sans Vertebr. V. Crust, p. 270 : Dumeril in Diet. Sci. 

 Nat. XI. 1818, p. 299 : de Brebisson, Mem. Soc. Linn. Calvados, 1825, p. 233. 



Portunus mxnas [" Leach, Edinb. Encycl. VII. p, 390 " sec. Milne Edwards] : 

 Costa, Faun. Regn. Napoli, Crost. Brach. p. 7. 



Carcinus mxnas, [*' Leach, Edinb. Encycl. VII. p. 429 " sec, Milne Edwards] ; and 

 Trans. Linn, Soc. XI. 1815, p. 314; and Malao. Pod. Brit. pi. v: Desmarest, in Diet. 

 Sci. Nat. XXVIII. 1823, p. 217 ; and Consid. Gen. Crust, p. 91 : Eisso, Hist. Nat. 

 Eur. Merid V. Crust, p. 7 : Audouin, Explic. p. 84 : Savigny Descr. Egypt. Crust, pi. 

 iv. fig. 6 : Milne Edwards in Cuvier R^gne Anim. pi. x. fig. 3 and Hist, Nat, Crust. 

 I, 434: ["Gould, Report on the Invertebrata of Massachusetts, p. 321 " sec. A, 

 Milne Edwards] : De Kay, Zoology of New York, pt. VI. Crust, p. 8, pi. v. figs. 5, 6 : 

 Lucas, Hist. Anim. Artie, in Expl. Sci. Algerie, Zool. I. i. p. 13 ; and Hist. Nat. 

 Anim, Art. p. 95 : Bell, British Stalk-eyed Crust, p. 76 : Salter, Journ. Linn. Soc, 

 Zool,, IV. 1860, p. 34 (process of moulting): A. Milne Edwards, Archiv. du Mus. X. 

 1861, p. 391 : Van Beneden, Rech. Faun. Litt. Belg. p. 133 : Heller, Crust. Sudl. 

 Europ, p. 91, pi. ii. figs. 14, 15; and Novara Crust, p. 30: W. C. Mcintosh, TranS. 

 Linn. Soc. XXIV. 1864, p. 79, pi. xix., xx. (on the various kinds of hairs) : Sars, 

 vide Zool. Rec, III. 1866, p. 224 : Nardo, Annot. Crost. p. 87 : Wood-Mason, Proc. 

 Asiatic Soc. Bengal, 1873, p, 172, and Ann. Mag. Nat. Hist. (4) XII. 1874, p. 405 : 

 Brocchi, Ann, Sci. Nat. (6) II, 1875, Art. 2, p, 62, pi. xvi. figs. 89, 90, 100, 101. 

 (male parts) : Streets, Bull. U. S.Nat. Mus. VII. 1877, p. 109 : Meinert, Nat. Tids., 

 Copenhagen, (3) XL 1877, p. 222, and (3) XII. 1879, p. 507 : Kingsley, Proc. Ac. 

 Nat. Sci. Philad. XXX. 1878, p. 321, and XXXI. 1879, p. 398; Nauck, Zeits. Wiss. 

 Zool, XXXIV. 1880, p, 56 {gastric teeth) ; Boas, Stud. Decapod, (Vid, Selsk. Skr, (6) 

 1.2) p. 141: S, 1. Smith, Trans. Conn. Acad. V. p. 34: Carrington and Lovett, 

 Zoologist (3) VI. 1882, p. 12 : Carus, Prodr. Faun. Medit. I. p. 518 : Cano, Boll, Soc. 

 Nat. Napol. IIL 1889, p. 222 : Mobius, SB. AK. Berl. 1893, pp. 75,76: Ortmann, 

 Zool. Jahrb. Syst,, etc, VII. 1893-94, p. 423: Birula, Ann. Mus. Zool. Petersb. 

 1897, p. 448. 



Carapace about three-fourths as long as broad, the regions fairly 

 well defined, the gastric being divided into three areolae, the surface 

 finely granular, especially in the anterior half. 



Front cut into three lobes, of which the middle one is acuminate. 



Antero-lateral borders rather shorter than the postero-lateral, cut 

 into five anteriorly-acuminate teeth. Posterior border forming a curve 

 with the postero-lateral borders. 



Orbits without any particular dorsal inclination, their major 

 diameter about half the width of the inter-orbital space. Antennal 

 flagella about IJ times the length of the orbit. 



