. Bulletin - United States National Museum. Science. 210 BULLETIN 34, UNITED STATES NATIONAL MUSEUM. The color ot the form Viiidesceiis is a light browiiisli-olive above, which is or is uot marked off distinctly from the paler color of the lower surfaces aloug the side. The iuferior surfaces are straw-color or dirty white. Ou each side of the vertebral line is a row of from three to six smad round red spots, each with a black border. The rest of the sur- face is marked with small black points, which are smaller but more dis- tinct on the lower surfaces. On the legs they are larger and more dis
. Bulletin - United States National Museum. Science. 210 BULLETIN 34, UNITED STATES NATIONAL MUSEUM. The color ot the form Viiidesceiis is a light browiiisli-olive above, which is or is uot marked off distinctly from the paler color of the lower surfaces aloug the side. The iuferior surfaces are straw-color or dirty white. Ou each side of the vertebral line is a row of from three to six smad round red spots, each with a black border. The rest of the sur- face is marked with small black points, which are smaller but more dis- tinct on the lower surfaces. On the legs they are larger and more dis- tinct, and ou the tail they appear to liave run like ink spots ou paper placed in water. In specimens without fins they sometimes form two rows on each side of the tail and a line along the side from the axilla to the groin. There is a faint dark line from the eye to the last cheek-pit. Chin and throat generally unspotted. In the form Miniatus the tail is narrow, being without dermal borders, The color of the superior surfaces is vermdiou red and the lower sur- faces citron-yellow. The red spots are present as in the other form, but the small black spots are rarely prcseut on the back. They are present on the sides, belly, limbs, and tail, and never run together into lines. In this form the skin of all the upper surfaces is rough, with numerous minute, semitransparent horny points of the skin. These are not devel- oped on the inferior surfaces. These characters would be likely to follow the exposure of an aquatic. â 7 \ 3 1 Fig. 53. Diemycti/his minialMS miniatus Tla,f. 3802. T wice natural size. Root River, Wis. animal with soft skiu to the comparative drought of the atmosphere. The greater acuteuess and prominence of the cranial crests displayed by the Miniatus form is probably caused by the closer adherence of the thinner integuments under these circumstances. Direct observations as to these points, however, exist. Dr. Hallowell was the first to express his belief that th
Size: 3508px × 713px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience