| Author Title Journal |
Mecznikow E (1865) Zur Naturgeschichte der Rhabdocoelen. Arch. f. Naturgesch. 31(1): 174-181, tab. 4. Berlin 1865. |
Abstract / Notes
"Mecznikow (l. c. p. 174) states that this peculiarity, from the uncertainty of its occurrence, cannot furnish any classification character for the chief divisions or even for the genera; and he brings forward some remarkable facts in connexion with the reproductive organs of a common fresh-water form, Prostomum lineare, to serve as a proof of this. The peculiarities referred to, however, are by no means common to the whole genus, but do not even extend to closely allied species, such as a new marine species described as P. helgolandicum (p. 176). Alaurina prolifera (Busch). Mecxnikow shows that this is probably not a larval form, for the specimens met with at Heligoland were furnished with hermaphrodite sexual organs; they are referred to a new species, A. composita (p. 181), and made a distinct family, Alaurinae, in the neighbourhood of the Microstomeae." [reference from Graff Lv 1904-08 (citation) - p 1773.]
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