124 Mr. F. A. Bather on a 
thighs, Reddish brown above, with dark brown dots and the 
following principal blackish markings :—a blotch capping the 
tip of the snout, a curved band from the nostril to the eye, a 
cross-band between the eyes, a vertical bar below the anterior 
third of the eye, a temporal band, two oblique bands (one 
behind the other) on each side of the body, and cross-bands 
on the limbs ; upper lip behind the black vertical bar, flanks, 
and lower parts white; a black crescent at the axil and 
another at the groin; back of thighs colourless, black-edged 
above. 
From snout to vent 33 mm. 
A single female species. 
This frog, remarkable for its very short hind limbs, appears 
to be related to H. melanargyrea, Cope, from Mato Grosso, 
which differs in the tibio-tarsal articulation reaching the eye, 
as well as in other respects. 
XII.—Protoscolex latus, a new “Worm” from Lower 
Ludlow Beds. By F. A. Batuer, F.R.S, 
(Published by permission of the Trustees of the British Museum.) 
THE genus Protoscoler was founded by H. O.. Ulrich in 
July 1878 (Journ. Cincinnati Soc. Nat. Hist. i. p. 89). Since 
the paper is rare, his generic diagnosis may be quoted in 
full :— 
“ Body ranging from a medium toa great length, of nearly 
uniform width throughout its length; body divided trans- 
versely by more or less narrow, simple or papillated segments. 
Anterior and posterior ends obtusely pointed, and, probably 
because the specimens are fossil, are not distinguishable 
from each other. No sets or appendages of any kind.” 
This was followed by the description of four species— 
P. covingtonensis (the genotype), P. ornatus, P. tenuis, and 
P. simplex. All were found south of Covington, Kentucky, 
associated with the polyzoa now known as Arthrostylus tenuis 
(James) and Arthropora shafferi (Meek), also with Serpulites 
dissolutus, Billings. The stratum is now referred to the 
Kconomy formation in the Eden series, that is, Lower 
Cincinnatian, just above the horizon of the Utica shale. 
One other species has since been described, namely, P. 
magnus, by Miller and Faber in July 1892 (op. cit. xv. p. 83). 
This was found in the Fulton formation of the Eden series, 
corresponding to Utica shale, in Cincinnati. 
