Pseudostomum caecum (von Graff, 1883) n. comb. for enterostomum caecum von Graff, 1883; a morphological and cytological study of an alloeocoele — turbellarian (cumulata, Pseudostomidae)
✍ Scribed by Arthur W. Jones
- Book ID
- 102902377
- Publisher
- John Wiley and Sons
- Year
- 1943
- Tongue
- English
- Weight
- 748 KB
- Volume
- 73
- Category
- Article
- ISSN
- 0362-2525
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✦ Synopsis
PART I. SYSTEMATICS AND MORPHOLOGY
A t Millport, Norway, in 1882, von Graff found a few marine turbellaria which he named Enterost onium caecum ; Enterostomum, because he thought the pharynx and genital ducts opened together, at the posterior end of the animal (as they do in animals of the genus Enterostomum Claparede, 1861), caecum, because the animal lacked eyes. Von Graff's descriptjon, however, failed to locate the cephalic ganglia. There is no way, from that description, to determine the proper orientation of the animals. Although von Graff said he found the animals creeping upon water-plants of a tide pool, he failed to report the direction of their creeping with relation to the pharynx. His description, and, of course, the taxonomic allocation selected by him, could not be considered either correct or incorrect until further morphological studies were made. There has been 110 published report on Enterostomum caecum sjnce von Graff 's.