disk widely spread. The indentations at the corners of the mouth in the
papillary fringe are more prominent when the mouthparts are less
extended. The outer row of teeth of the lower labium is sometimes a
little shorter or longer than the figure shows, but the average is
about as indicated. The extent of the medial edge of the papillae on
the lower labium varies somewhat; in some, the papillae barely reach
the level of the ends of the outer row of teeth, while in others they
overlap the ends slightly.

Measurements agree with those given by Bragg, except that appearance of
the hind legs occurs at about 15 mm.; the fore legs appear at about 28
mm. A pattern recognizably similar to that of the adult is evident at
about 20 mm.

These tadpoles show such a striking similarity to those referred by
Wright to _Bufo compactilis_ Wiegmann (Proc. U. S. Nat. Mus., 74:4, pl.
5, fig. 6, 1929) that their conspecificity is suggested. If on the
other hand, the specimen figured by Wright is properly identified, then
the two species must in reality be very closely related. A direct
comparison of positively identified tadpoles of each species is much to
be desired.

21-2764

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Hobart M. Smith

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