10 
of the sides of the body. Fingers 4, the second longest ; toes 5, cy- 
lindrical, tapering, not armed. yes lateral, middle-sized. 
“ MyoBATRACHUS PARADOXUS. 
Above brownish grey, beneath greyish. 
Hab. Australia; Swan River. Mus. Leyden. 
The Prince of Canino has made for this animal a family, which he 
has named MyosaTRACHID&.” 
Mr. Gray observed, that a toad which he described and figured in 
Capt. Grey’s Travels in Australia, under the name of Breviceps 
Gouldii, agrees with the animal described by Dr. Schlegel in all par- 
ticulars, and especially in possessing the two horizontal horny appen- 
dages on the intermaxillary, which Dr. Schlegel described as hori- 
zontal fangs ; they are partly sunk into the integument of the palate. 
Admitting the propriety of the proposed generic distinction, the 
animal will therefore now stand in the catalogues as Myobatrachus 
Gouldii. 
The presence of the teeth in the intermaxillary separates this animal 
from the Breviceps of South Africa. 
3. DESCRIPTIONS OF SOME APPARENTLY NEW SPECIES OF LONGI- 
CoRN COLEOPTERA IN THE COLLECTION OF THE BriTISH 
Museum. By Apvam Waite, F.L.S., AssisTanNT IN THE 
Zoou. Dept. Brit. Mus. 
(Annulosa, Pl. XIII.) 
Prionacatus Atys. Pl. XIII. fig. 4. 
In the ‘ Annals and Magazine of Natural History,’ vol. xv. p. 108, 
I have described under the name of Prionacalus Cacicus, a curious 
genus from Mexico, allied to Psalidognathus, G. R. Gray. I re- 
garded the two specimens as male and female of the same species, 
but it would seem that they are both males, and as they are con- 
siderably different, must be different species ; what was deemed the 
male may retain the name Prionacalus Cacicus; it is figured on 
plate 8. fig. 1. of the above volume. The other specimen may be 
named Prionacalus Iphis; it is figured on plate 8. f. 2. Since the 
above we have received a third species from the Andes of Peru, where 
it was found by Prof. Jameson of Quito ; the following short specific 
characters may distinguish the three :— 
P. Cacicus. 
Head behind the eyes without a prominent spine, the lateral mar- 
gin behind, produced into a slight process directed backwards; a 
strong crested ridge over each eye, at the end directed outwards ; 
antennee, palpi and legs rufous, antennze blackish at the base; jaws, 
excepting at the end and on the edges (where they are smooth) roughly 
punctured: head, thorax and elytra, at the base, somewhat roughly 
punctured, the elytra more delicately punctured towards the end. 
Hab. Mexico. 
