Chilopoda of the Australian Continent. 459 
slender, the femur armed with 4, 2, 3,6 spines, the protarsus 
unspined. 
Length 38 millim., of anal Jeg 12 millim. 
Loc. Rockhampton. 
Genus Ruysipa, Wood. 
Rhysida carinulata, subsp. australica (Haase). 
Branchiostoma carinulata, subsp. australica, Haase, Abh. Mus. Dresden, 
no. 8, pp. 82-83 (1887). 
Loc. Cape York. 
Rhysida longipes (Newport). 
Branchiostoma longipes, Newport, Tr. Linn. Soc. xix. p. 411 (1845) ; 
Haase, Abh. Mus. Dresden, no. 5, p. 83, pl. vi. fig. 86 (for synonymy). 
Loc. Melbourne (according to Haase). 
Widely distributed in the tropics of the eastern and western 
hemispheres. 
Rhysida nuda (Newport). 
Branchiostoma nudum, Newport, Tr. Linn. Soc. xix. p. 412 (1845) ; 
Haase, Abh. Mus. Dresden, no. 5, p. 84, pl. v. fig. 88 (1887). 
Loc. Parramatta, Port Mackay, Bowen, Brisbane, and 
Elphinstone. 
Key to the Species of Rhysida. 
a. Terga with finely toothed keels; anal pleure with 5spines. australica. 
6. Terga without keels; anal pleure with four spines. 
a’. Antenne with 18 segments; three rows of spines on 
thoremora of analulegsy. 2). sc, . ee ca re cts eters longipes. 
b'. Antenne with 21 segments; anal femora weakly 
SWIC. ecto ee et SPP EGE Shes e wer nmiae > ol. nuda. 
Genus ETuHmostiaMus, Poc. 
(= Heterostoma, Newp., and Dacetum, Koch, preoccupied, the latter as 
Daceton.) 
Ethmostigmus rubripes (Brandt). 
Scolopendra rubripes, Brandt, Recueil &c. p. 65 (1840). 
Heterostoma sulcidens, squalidens, scabriventris, sulcicornis, mega- 
cephala, Newport, Ann. & Mag. Nat. Hist. xiii. p. 99 (1844), 
and Tr. Linn. Soc, xix. pp. 416-417 ; fasciata and flava, id. op. cit. 
pp. 415-417. 
Heterostoma rubripes, Haase, Abh. Mus. Dresden, no. 5, p. 89 (1887). 
This, the largest Australian Centipede, is also wide-ranging. 
Newport’s types of sulcidens, squalidens, and scabriventris were 
from Parramatta ; those of megacephala and sulcicornis from 
Port Essington ; and of flava from the Swan River. 
