i86i. Goinosoma crucifcrmn, A. Milne-Edwards, Arch. Mus. 

 Hist. \at., vol. JO, p. 3/1. 



1886. Goniosoma cnicifenim, JNIiers, Challenger Brachyura, Re- 



ports, vol. i"/, p. 191. 



1887. Coiiiosoiua cnicifernm, de Alan, Journ. Linn. Soc. Lon- 



don, vol 22, p. 79, pi. 5, fig I. 



1893. Charybdis crnciatus, Stebbing, History of Crustacea, p. 70. 



1899. Charybdis {Goniosoma) crncifera, Alcock, Jotu-n. Asiat. Soc. 

 Bengal, vol- 68, pt. 2. p. 5T. 



1902. Goniosoma critcifenim, Lonchestcr, Proc. Zool, Soc. Lon- 

 don, p. 545. 



In 1783, Herbst, Krabben iind Krebse, pts, 2-5, p. 153, pi. 7, 

 fig. 52, pi. 8, fig. 53, described a species under the name Canctr 

 sexdentatiLS. In 1794 he recognised that the carapace repre- 

 sented on pi. 7, fie. .^2, belonged to a distinct species from that 

 represented on pi. 8, fig. 53, and pi. 38, fig i. Milne-Edwards,. 

 Hist. Nat. Crust., vol. i, p. 462, 1834, introduces some contusion 

 into the synoii) my by reterring to Herbst'b L.sexdt"ntaius^Y)\. 7, 

 fig- 52, as a possible synonym of his C cruciatus, without noticing 

 pi. 8, fig. 53, which really belongs to that species. On p. 463 he 

 gives " Cancer scxdcniatns. Forsk " as a synonym of TJialaniita 

 annnlata (Fabricius), thus leading to the supposition that Herbst's 

 C. sexdcntatus was a name preoccupied by Forskal in 1775. But 

 I cannot find that Forskal ever used the name in question, 

 though he described a species Cancer serratus, with " f route 

 sexdentatay Caiicf-r fcriatus, Linn., 1 758, is based on fie. P. ot 

 pi. 6 in Rumph's Amboinsche Rariteitkamer, 1705, and Herbst 

 identities his C. .s-^Av/d'wA////^ with the. -ametigure. liut he claims, 

 on the ground of the description given by Linnaeus, that C. 

 feriatus cannot be the same species. There can, however, be 

 little doubt that Linnaeus drew up his description in a rough 

 and ready and inadequate fashion from the figure in Rumph's 

 volume, and it is rather difficult to avoid the conclusion that this 

 figure reprebeiii.~> C. cruciatus. it iliat were admiited, the 

 Linnean name would have to be restored But tlie matter 

 is too vague for such a decision. 



A dried female specimen of this beautiful species from the Cape 

 shows the characteristic cross on the carapace, pale on a niarc)ou 

 ground. The carapace meastired between the tips of the lowest 

 lateral spines was 122 mm., or nearly 5 inches broad; the length 

 from the apex of a submedian tooth to the hind margin is 80 

 mm., or 3 inches and a fifth. The fifth segment of the pleon is 

 55 mm. across, the triangular seventh segment is 17 mm. broad 

 at the base. 



Locality : — Port Alfred. 



