300 Miscellaneous. 



The anatomy of the eye and ear is fully described in the 

 original paper, together with that of the digestive, nervous, 

 and vascular systems ; in connexion with this last, remarkable 

 vascular retia were found, situated in the axillary, submaxillary, 

 and cervical regions. 



MISCELLANEOUS. 



Notice of a new Species of Spider Monkey (Ateles Bartlettii) in the 



British Museum. By Dr. J. E. Gray. 

 Mr. Edward Bartlett, who is collecting specimens on the banks 

 of the Amazons, has sent home a new and beautiful species of 

 spider monkey, which I propose to call Ateles Bartlettii, in honour 

 of the father and sons. Every one acquainted with the father knows 

 him as a most careful and accurate observer and most obliging per- 

 son ; and I believe his sons are following in his footsteps. 



Ateles Bartlettii may be thus distinguished : — 



Fur abundant, long, and soft. Black ; the cheeks white, a band 

 across the forehead over the orbits bright reddish yellow ; the chest, 

 belly, inner side and front and back of the limbs, and the sides and 

 under surface of the tail yellow. 



Hab. Brazil, the upper part of the Amazons (Bartlett). In Brit. 

 Mus. 



Note on a Species of Planarian TVortn hitherto apparently not 

 described. By the Rev. "W. Houghton, M.A., F.L.S. 



To the Editors of the Annals of Natural History. 



Gentlemen, — I have recently met with a form of Planarian 

 worm which I am unable to identify with any described species, 

 either in Diesing's ' Systema Helminthum ' or in Johnston's ' Cata- 

 logue of non-parasitic Worms in the British Museum.' It belongs 

 to the family of Dalyellidse, and is a species of the genus Typhlo- 

 plana. Hemp. 8c Ehrenb. Diesing (Syst. Helminth, vol. i. p. 231) 

 enumerates four freshwater species of this genus ; and Dr. Johnston 

 admits two into the British fauna, viz. T. fcecunda and T. prasina, 

 the first of which is white, the second of a beautiful grass-green 

 colour. My specimens are almost entirely black, except at the mar- 

 gins near the head. I find them within the stems of Sparganium in 

 a weedy reedy pond where other Planarise (such as Polycelis nigra 

 and P. brunnea, Planaria lac tea and P. torva) are common. The 

 species, which I believe to be new, occurs sparingly. Diesing's 

 definition of the genus is as follows : — 



" Corpus oblongum, teretiusculum. Caput corpori continuum. 

 Os centrale v. subcentrale. Ocelli nuUi. Apertures genitales. . . . 

 Aquarum dulcium, rarissime maris incola^." 



The species, which I propose to call Typhloplana nigra, may be 

 thus described : — 



Body rounded anteriorly, tapering to a point behind ; colour deep 



