. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. NEW SPECIES OF FLATWORM FROM NEW ENGLAND 247 and 13 January, 1988. One hundred and fifty specimens were collected and examined. Of the series, 34 animals had fully formed reproductive organs. Most specimens were killed in 2% nitric acid and fixed in FAA. A few specimens were maintained in laboratory conditions for behavioral observations. Twelve speci- mens were serially sectioned using conventional tech- niques and stained with Delaneld's or Ehrlich's hema- toxylin and eosin. Though most sections were of the sag- ittal plan
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. NEW SPECIES OF FLATWORM FROM NEW ENGLAND 247 and 13 January, 1988. One hundred and fifty specimens were collected and examined. Of the series, 34 animals had fully formed reproductive organs. Most specimens were killed in 2% nitric acid and fixed in FAA. A few specimens were maintained in laboratory conditions for behavioral observations. Twelve speci- mens were serially sectioned using conventional tech- niques and stained with Delaneld's or Ehrlich's hema- toxylin and eosin. Though most sections were of the sag- ittal plane, cross sections were prepared in two cases. An additional three specimens were dissected. The Holotype and the Paratypes (all slides) and a series of whole speci- mens have been deposited into the collections of the Mu- seum of Comparative Zoology, Harvard University, Cambridge, Massachusetts. The remaining specimens and prepared slides have been deposited into the Mu- seum of Zoology, University of Massachusetts. Amherst, Massachusetts. Systematic Account and Results Family Planariidae Stimpson, 1857 Genus Polycelis Ehrenberg, 1831 Polycelis remota, new species Diagnosis Polycelis remota is a medium sized species (maximum length, 17 mm) demonstrating characteristics represen- tative of the genus, including the presence of an arc of eyespots following the anterior contour of the body of the animal, distinct cephalic auricles produced anterolat- erally. testes situated ventrally, and pre-pharyngeal and paired oviducts uniting posteriorly of the penis bulb to form a common oviduct which descends to the genital atrium. Otherwise, it is distinct from all known species of Polycelis by the possession of a large, transverse mus- cular gland with a single exterior sucker-like organ situ- ated always on the right ventral side of the animal, ante- rior and separate from the gonopore and its associated atrial cavities. The new species is further distinguished from all other known specie
Size: 1463px × 1707px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
