son coll. : 
anteriorly and uniting on the sides of neck with a horizontal groove 
- 
116 NEW CENUS OF SALAMANDER—STEJNEGER. 
Typhlotriton spelzeus, Sp. nov. 
DIAGNOSIS: Sixteen costal grooves; tail slightly compressed, not 
finned; toes nearly half webbed; vomerine teeth in two v-shaped series 
with the curvatures directed forward; gular fold strong, very concave 
anteriorly; color uniform pale. 
HABiratT: Rock House Cave, Missouri. 
Type: U.S. National Museum, No. 17903, July 24, 1891, F. A. Samp- 
Description of type specimen.—( 2 ad).—Head wide, much wider than 
neck, very depressed and flat on top, with no canthus rostralis; snout 
rather swollen, truncate; nostrils very small; eyes small, only slightly 
raised, and covered by the continuous skin of the head with only a 
shallow groove to indicate the opening between the lids, the underlying 
eyes only visible as two ill-defined dusky spots; body somewhat 
depressed, measuring thrice and a third the distance from snout to gular 
fold; limbs short, about five costal interspaces apart when laid against 
the body; fingers rather short, especially the first, nearly free; length, 
beginning with the shortest, 1-4-2-3; number of phalanges 1-2-3-2; 
toes rather short, first almost rudimentary, nearly half-webbed; length, 
beginning with the shortest, 1-2-5-4-3, second and fifth, and fourth and 
third being nearly equal; number of phalanges 1-2-3-3-2; tail con- 
siderably shorter than head and body, subcylindrical at base and some- 
what squarish, more compressed toward the tip, rounded above, faintly 
keeled below; skin minutely granulate; gular fold strong, very concave 
running from eye backwards; sixteen costal grooves, or eighteen, if 
counting the axillar and groin grooves, crossed on the sides by a strong 
horizontal groove between axilla and groin. 
Maxillar and mandibular teeth small, numerous, normal; vomerine 
teeth not extending outside of the choanze, forming two v-shaped, 
strongly curved series with the points directed forward, the external 
branches straight, the internal ones curved inward and well separated ; 
parasphenoid patches, long, rather narrow, well separated, their dis- 
tance being nearly equal to their width, and well separated from the 
vomerines; teeth small, in numerous rows. 
Tongue rather large, attached anteriorly and along the median line 
for a trifle more than the anterior half, extensively free laterally and 
posteriorly. 
Color (in alcohol) uniform creamy yellow; in life, ‘ pale.” 
Dimensions. 
Millimeters. 
WMotallenothy 5. cot. cpa oe tents = eee eee ee ee 93. 0 
Hromisnowt to eulardtolde. oer. hee ee ee eee 12.0 
Mrem sno: amis. sees sees eee eee 25 Se! ee ee 52.0 
Width ot head: 322 .s.5 52. eee ee EA a eee ee 8.5 
More dim p<..- 224 ..fs5. Se Se eee a0 
ine Aiimib, = ee Ste. 3 ole ee ee ee 13.0 
ED aM yoreaes, ooo ow Raw ernaie Sea eS Ck o he eeS ee eee 41.0 
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