Comparative larval morphology in Madagascan frogs of the genus Guibemantis (Amphibia: Mantellidae) Author Vejarano, Silvia Author Thomas, Meike Author Vences, Miguel text Zootaxa 2006 1329 39 57 journal article 10.5281/zenodo.174179 d0606cb6-b406-40d1-8bfc-f023cebeca32 1175-5326 174179 Guibemantis kathrinae Glaw, Vences & Gossmann, 2000 Series examined: ZSM 460/2004 (fieldnumber 2002.1984; DQ054493 ), series of 3 specimens from An'Ala forest ( 18°56'S / 48°28'E ) at an altitude of about 840 m , all collected in one shallow pond not deeper than 30 cm with a swampy and leaf-covered ground on 1 March 2003 . Description based on the DNA voucher specimen. Tadpole in stage 25. For morphometric data see tables 3 and 4. Colour in preservative brown, not homogeneous but with a patch on top of the head and transverse stripes behind. The intestinal wall is also pigmented and the intestinal spiral visible. Ventral part of the body lacks pigmentation. Anterior part of the tail with transverse stripes, but the rest of the tail and caudal fin are missing because of tissue sampling. Tadpole type IV ( Orton 1953 ). Body shape oval. Snout in dorsal view almost rounded. Eyes medium-sized (about 0.1 of body length) dorsally positioned (fig. 3a and b). Spiracle sinistral, positioned ventrolaterally at mid body. Oral disc completely ventral, laterally emarginated ( Fig. 3 c). Dorsal gap of the marginal papillae large ( 2.2 mm ). The rest of the oral disc bordered completely by 52 marginal papillae; ventral (posterior) ones about 0.1 mm long, diminishing in length as they reach the middle. One row of 28 submarginal papillae on the lower lip; three lateral on each side of the upper lip. LTRF 1:5+5/1+1:3 ( Dubois 1995 ) or 6(2–6)/3(1) ( Altig & McDiarmid 1999 ); Number of teeth per millimetre varies in each row from 36 to 64. From UTR2 on, the rows are separated by the upper jaw sheath. LTR1 with a short gap. Jaw sheaths distinct and black, with serrated edges (ca. 80 on each jaw). Sheath of upper jaw gently curved in the middle, and lower jaw sheath resembling a wide V. TABLE 3. Morphometric measurements (all in mm) of DNA vouchers of Guibemantis tornieri , G. depressiceps and G. kathrinae . For rows divided by a gap, the number of teeth presented on the table is the average of the numbers on each side of the tooth row.

G. tornieri	G. depressiceps	G. kathrinae
Stage	26	26	25
bl	7.3	10	10.8
bw	4.7	5.0	7.0
odw	2.3	3.3	3.5
dgmp	1.5	2.1	2.2
iod	2.9	4.5	4.8
ed	1.1	1.3	1.3
th	2.9	3.8	4.6
tmw	2.1	2.6	3.3
mp	0.1	0.1	0.1
UTR1	1.6	2.0	2.7
UTR2	0.8	1.2	1.3
UTR3	0.5	1.0	1.0
UTR4	0.3	0.9	0.8
UTR5	1.2+	0.8	0.6
UTR6	-	0.6	0.4
UTR7	-	0.2	-
LTR 1	0.8	1.2	1.2
LTR 2	1.6	2.8	2.5
LTR 3	1.7	2.9	2.7

+ UTR5 only on the right side of the oral disc. TABLE 4. Number of marginal and submarginal papillae (MP, SMP) and number of labial teeth per row in the DNA vouchers of Guibemantis tornieri , G. depressiceps and G. k a t h r i n a e . For rows divided by a gap, the number of teeth presented on the table is the average of the numbers on each side of the tooth row.

G. tornieri	G. depressiceps	G. kathrinae
MP	41	56	52
SMP	12	17	28
LTRF	4–5(2–5)/3(1)	7(2–7)/3(1)	6(2–6)/3(1)
UTR1	128	208	99
UTR2	41	70	71
UTR3	32	53	64
UTR4	19	48	45
UTR5	9+	36	38
UTR6	-	29	24
UTR7	-	13	-
LTR 1	40	55	69
LTR 2	97	166	116
LTR 3	119	190	154

+ UTR5 only on the right side of the oral disc. Two other specimens of the series in stages 25 and 27. The latter with UTR7 on the right side, 72 marginal papillae, two submarginal papillae on each side of the upper lip and 9–10 on the lower lip. The other specimen with 55 marginal papillae, three on each side of the upper lip and 8–9 on the lower lip. Coloration, general and oral disc morphology agree with the DNA voucher specimen.