106 PLANARIA. 



I have had numerous specimens, but without being able to identify 

 them with either the Planaria tremettaris, or Planaria atomata. How- 

 ever, this is n'ot on account of the scalloped margin with which these species 

 are represented, for I doubt if any of the marine species shew any 

 marginal irregularity, unless from constraint, so that such distinctions 

 are delusive. 



PLATE XIV. 



FIG. 27. Planaria, maculata, back. 



28. Belly. 



29. Another specimen, back. 



SO. Another specimen, belly, enlarged. 



31 . Back, slightly enlarged. 



32. Another specimen, somewhat enlarged. 



33. Anterior surface, shewing the position of the specks, enlarged. 



34. Patch of spawn. 



35. Spawn, more enlarged. 



e. PLANARIA HATJSTRUM The Scoop Planaria. PlateXIV. Figs. 36, 37, 38. 



Length above a line ; breadth about a third of the length ; snout 

 straight, body flat, flexible, the sides often folding so as to resemble a 

 scoop. The body tapers from about the middle to the posterior extremity, 

 which is pointed, whereon the animal rises erect ; also adhering by it. 

 Colour brown, speckled. Motion swift, being the most active of any of 

 the Planarise. 



No specks or eyes perceptible. Marine. 



This species dwells in the pools among the rocks at Eyemouth, at 

 somewhat within half tide. Specimens may be obtained by washing a 

 quantity of marine plants, especially the Fuci, in a white basin, or a large 

 white saucer. 



Some have survived nine months. 



The Planaria convoluta of Mtiller, has considerable analogy to this 

 species. 



