312 MARY H. HINCKLEY, NOTES 



Average length of a number of full-grown males 24 mm. ; females a little longer, when 

 fully grown, than males. 



Tadpole. Length of head and body about twice the width of the latter. Head broad, 

 snout large and blunt; eyes prominent; pupil rounded or tending to more or less of an 

 angle at base ; nostrils large, nearer the eye than end of snout ; distance from one another 

 about equal to their distance from eye. Mouth broad (fig. 2), upper lip curving upward 

 in the middle, edge even or elongated into scallops or points, fringed with deep-brown, 

 horny teeth, as is also the divided fold beneath it and the two folds across the under lip ; 

 the under lip shows variability in the presence or absence of a short space of fringe set in 

 the papillose border of the lip, and when the fringe is present its position and size vary; 

 sometimes it is reduced to one or two teeth attached to about the same number of papillae. 

 The papillae across the border of the under lip are placed either in a single or double row ; 

 if double and the fragment of a fringed fold is present, I have found the latter inserted 

 among the papillae of the inner row. The teeth forming the fringe in the mouth are com- 

 posed of a series of teeth placed one above the other (fig. 3) ; the base of each tooth is in- 

 verted cup-shaped, the upper edge or rim dentate ; two : teeth or a double tooth occasionally 

 appears in the series (fig. 4). The beak is prominent, deep-brown in color ; edge of upper 

 and lower mandible dentate. Spiraculuin on the left side, opening nearer the base of tail 

 than end of snout. The tail measures about twice the length of head and body ; the mem- 

 branous portion of the tail is divided into two pretty equal parts by the muscular portion 

 which runs to a fine point. A suture or band runs the length of abdomen from branchial 

 cavity to end of body. Head, body, and tail are traversed by glandulous lines more or 

 less distinct ; those termed " dorso-laterales " by M. F. Lataste (Etude sur le Discoglossus 

 piclus ; Actes de la Soc. Linn, de Bordeaux, vol. xxxiii, 4 ser. t. in, p. 313) are most con- 

 stant in presence and disposition. The tadpole leaves the membranous shell of a pale yellow 

 color, dotted with deep-brown on head, body, and tail (fig. 1). During the first few days 

 the brown pigment cells gradually increase, generally leaving intact a narrow space of yel- 

 low from before the eye down each side to the base of the tail ; at the same time a few 

 spots of gold-colored pigment appear on head, body, and tail. By the eighth day numer- 

 ous groups of deep-brown, almost black, pigment cells have spread over the upper surfaces, 

 excepting in some instances the narrow space of yellow, which retains its original color till 

 the golden pigment, which gradually increases on the tadpole, forms here for a while a con- 

 spicuous line, broad and noticeably brilliant, each side the base of the tail ; across the 

 upper edge of this member lines of the same color sometimes occur. With the budding of 

 the legs (third stage of Duges), the gold-colored pigment begins to show a brilliant sheen 

 of green ; that of the iris, however, tends to the reddish hue found later in the fully 

 developed eye of the frog ; as much of the eye as is seen outside the iris, is of a greenish 

 color. The vivid green sheen gives the tadpoles a prevailing tone of that color, excepting 

 on the lower portion of the sides of head and body, where there is a roseate hue; the dor- 

 sal surface has a bluish gloss. The tail is more or less flecked with brown and black. By 



1 M. Van Bambeke. Bull, de 1' Acad. Royale de Bel- sc comportent entre elles ; la dilatation en entonnoir dn 



gique, xvi, 347, pi. i et n. Recherches sur la structure de crochet faisant saillie sur le bonl libre de la levre, eoiffe le 



labouche chezlcs tetards des batraciens anoures. " Rien de corps du crochet suivant ; le gaine de celui-ci reeoit a son 



plus curieux que la maniere dont les dents de chaque serie tour le corps du troisieme appendice, et ainsi de suite." 



