Supernumerary leg in a male frog (Rana palustris) / by Frederick Tuckerman.

  • Tuckerman, Frederick, 1857-
Date:
[1886]
Catalogue details

Licence: Public Domain Mark

Credit: Supernumerary leg in a male frog (Rana palustris) / by Frederick Tuckerman. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

    7/10 (page 519)
    With the exception of the accessory limb the frog appeared to be in a perfectly normal condition. EXPLANATION OF PLATE XVI. It was found necessary, in order to show the rudimentary digit well, to turn the pes over, thus bringing the dorsal surface into view. 1. Enlargement filled with muscles corresponding to the position of the femur. 2. Sac partly filled, with fluid containing muscles and eras. 3. Proximal tarsal region composed of a single long bone. 4. Rudiment of the middle digit. [Editorial Note.—The malformation in this very remarkable frog will, without doubt, recall to some of our readers the case of Jean B tttista dos Santos, a native of Portugal, who visited this country in 1865, being then in his nineteenth year, and whose case was described in the Lancet of July 29, and subsequently by the late Dr P. D. Han- dyside, in the Edinburgh Medical Journal, March 1866. In Dos Santos's case of imperfect double monstrosity there were two complete sets of external organs of generation in addition to the intermediate lower limb. A case of a somewhat similar kind, in a female foetus, but with two lower limbs, was described by Von Baer, in Mem. de VAcad. de St. Peter&b.- VI. Series, and his figures are reproduced in F6rster'8 MissbUdungen des Menschen, Jena, 1865. The writer of this note had also the opportunity of seeing, in February 1885, through the courtesy of Mr R. Urquhart, Lecturer on Pharmacy, Edinburgh, a new-born child with a similar deformity. The child lived a few days, but no dissection of it was permitted by the parents.— W. T.]