Arch. Naturg. lviii. 1891, p. 66.
P. Boston Soc. vol. vi. 1848.
Zeitschr. wiss. Zool. Bd. v. 1854, p. 344.
Arch. Anat. 1858, p. 289.
Ibid. 1858, p. 558.
Arch. Naturg. lviii. 1891, p. 66.
P. Boston Soc. vol. vi. 1848.
Zeitschr. wiss. Zool. Bd. v. 1854, p. 344.
Arch. Anat. 1858, p. 289.
Ibid. 1858, p. 558.