66 BRITISH FRESHWATER RHIZOPODA. 



Genus 36. PAULINELLA Lauterborn, 1895. 



Patilinella LAUTERBORN in Zeits. wiss. Zool. LIX (1895), 



p. 537. 

 Sphenoderia (pars) WEST in Jrn. Linn. Soc., Zool. XXIX 



(1903), p. 115. 



Test small, transparent, oviform, not compressed, 

 composed of curved silicious plates in alternating- 

 transverse rows ; aperture single, terminal ; plasma 

 only partially filling the test; nucleus single, placed 

 posteriorly ; pseudopodia filose. 



This genus was instituted by Lauterborn for the 

 reception of P. chromatophora which up to the present 

 time remains the only species belonging to it. 



1. Paulinella chromatophora Lauterborn. 

 (Plate XLIV, figs. 1-8.) 



Paulinella chromatophora 



LAUTERBORN in Zeits. wiss. Zool. LIX (1895), pp. 534-544, pi. xxx ; 



in Jrn. R. Micr. Soc. 1895, pp. 542-543; in Zool. Centralbl. II 



(1895), pp. 486-487. 



EYPEBTH Einfach. Lebensf., ed. 3 (1900), p. 269. 

 LEVANDER in Medd. Soc. Fauna Fenn. XXVIII (1902), pp. 26-27 A, 



161 B ; in Festschr. Palmen, I (1905), n, pp. 19, 47. 

 PENARD Faune Rhiz. Leman (1902), pp. 579-580, . 14 (p. 572); 



Sarcodines grands Lacs (1905), pp. 62-64, 107, 3 figs. ; Sarcodines 



in Cat. Invert. Suisse (1905), p. Ill ; in Proc. Roy. Soc. Edinb. 



XXY (1905), pp. 595, 604; in Rev. Suisse Zool. XIII (1905), pp. 



603-610, pi. xiv, ff. 20-28. 



KEPNER in Bull. Woods Holl, IX (1905), pp. 128-129. 

 MURRAY in Proc. R. Soc. Edinb. XXY (1905), p. 615 ; in Bathym. 



Surv. Scott. Lochs, I (1913), p. 326. 

 AVERINTZEFF in Trudui S.-Peterb. Obshch. XXXVI, II (1906), 



p. 316. 



SCHOUTEDEN in Ann. Biol. lacustre, I (1906), p. 372, f. 57. 

 BROWN in Jrn. Linn. Soc., Zool. XXX (1910), pp. 360, 362, 367, pi. 1, 



ff. 14, 15. 



Test small, transparent, colourless or of a pale 

 lemon colour, not compressed, formed of curved 

 silicious plates with circular ends, arranged in eleven 

 or twelve alternating transverse rows, five plates 

 in each row ; transverse section circular ; aperture 

 small, terminal, oval, provided with a short parallel 

 neck; plasma clear, bluish, containing few granules 



