BRACHYUEA FROM TORRES STRAITS. 7 



Etistjs LJ3VIMANUS, Rand. 



Etisus lavimanus, Rand., Dana, U.S. Expl. Exp., Crust, i. p. 185^ pi. x. fig. 1 ; Alcock, Journ. Asiatic 

 Soc. Bengal, Ixvii. (2) p. 131 (1898). 



A single small specimen (17'5 mm. long) agreeing in general shape and proportions 

 of carapace with the still smaller specimens figured by Dana (/. e. fig. 1, /), the breadth- 

 ratio of the carapace being the same (1-46) as that given by him. In full-o-rown 

 specimens the carapace is much more transverse, the breadth-ratio being about 1-6. 

 Locality. " Fringing reef, Mabuiag." 



Etisodes frontalis, Dana. 



Etisodes frontalis, Dana, U.S. Expl. Exp., Crust, i. p. 187, pi. ix. fig. 3; Dc Man, Notes Leyden Mus. 

 xii. p. 8, pi. 1. fig. 2. 



Our two specimens (about 11-5 mm. long by 17-25 mm. broad) agree more closely with 

 De Man's figure than with Dana's, which is taken froma-very small specimen only 8 mm. 

 broad. The slight emargination of the frontal lobes is even less marked than in De Man's 

 figure, these lobes being nearly transversely truncate. The posterior teeth of the antero- 

 lateral margin are rather less spiniform, and some other slight differences are to be 

 gathered from De Man's detailed description. 



Locality. " Fringing reef, Mabuiag." 



Etisodes electra (Herbst). 



Etisodes sculptilis, Heller, SB. Ak. Wien, xliii. p. 333 (18G1) ; A. iMilne-Edwards, N. Arch. Mus. 



Paris, ix. p. 236, pi. ix. fig. 2 (1873). 

 E. electra (Ilbst.), De Man, Arch. Naturg. hii. (1) p. 290 (1887). 



Two specimens, agreeing well with Heller's description and Milne-Edwards's figure. 

 The larger, a female, measiu'cs 7 mm. in length by 10 mm. in breadth (breadth- ratio l'-J<2), 

 and is thus somewhat broader than is indicated by either of the authors named, whose 

 measurements give the breadth-ratio as 1'36 and 1'38 respectively. The smaller specimen 

 is a male 4 mm. long by 5' 25 mm. broad, giving a ratio of about ISl. 



Localitj/. " Murray Island, reef." 



AcT^A RiJPPELLii, Krauss. 



Actcea Ruppellii (Kr.J, De Man, Zool. Jahrb. Syst. viii. p. 499 (1895) ; Alcock, Journ. Asiatic Soc. 

 Bengal, Ixvii. (2) p. 144 (1898). 



Our specimens agree in most points with the description of this species as given by 

 De Man {I. c. and earlier papers there referred to). They show some variation in the 

 hairiness of the body and in the prominence of the regional divisions of the carapace. 

 One specimen, considerably larger than the others, differs from them in the greater 

 length of the hairs on the carapace and in the scantiness of the short dow^n which in the 

 other specimens covers the carapace below the long hairs. In this specimen tlie finger- 

 tips are slightly excavate. All our specimens can be matched from the series referred 



