148 THE AMERICAN MONTHLY [May 



styles, five, tiinbriattMl at t-lieii' distjil ends and all, but 

 tlie one nearest the loft hand budy border; projecting be- 

 yond the posterior marginal seta' continuous, heavier 

 and longer posteriorly; contractile vesicle located at the 

 centre of the left hand body border; nucleus, two, elon- 

 gate, one in each body half. Size from 1-200 to 1-150 

 inch. Habitat — (31d infusion of rose fission petals. 

 Transverse. 



This form was found exceedingly abundant in an old 

 infusion of rose petals, feeding ravenously on the very 

 abundant bacteria. Many of them seemed so gorged 

 with food that they moved about very lazily, affording 

 the writer a good 0{>i)ortunit y for their observation. 

 The fine inferior frontal siylesand all of the ventral ser- 

 ies were invariably furcated to within almost their 

 origin; bifurcated usually, a few specimens distinctly 

 tri-furcated. In a few specimens the three superior of 

 the frontal series were bifurcated and in some rare in- 

 stances an odd one or two of tli<^ marginal series were 

 bifurcated. The distal ends of all of the anal series, for 

 about one fifth of their Icniith, were distinctly and uni- 

 forraally fimbriated. 



Supplementary Note Upon A("rixoMo.\As Primus. 



An infusorial! sonit>wliat similar to this form is de- 

 scribed by Dr. (Trubfi' under the title ofDimorpha mutans.- 

 In its tiagellate condition, the D. mutans resembles a 

 Heteromita, having an anterior vibratile and a posterior 

 trailing Hagella. In its Heliozoan stale tiie pseudopodal 

 rays equal from two to three diamaters of the zooid and 

 decussate. 



ErkaTa : Wherever tin* woid "Viiitiiiiu" a)>peais reiut "Veiilral 

 Snrlhce." 



In family Aiiisoinidiu, Species DiploTiiastix mstriim, read "rost rat ns" lor 

 rostrum. 



In family Anisomida-. S])eeie Ivutosiplioii emarjiiiiata. reverse the fijinre, 

 making; tlie riijiit liand lM)rder t lie left hand. C'ontraetile Vesicle following; 

 the elianjie; the (ifiiire slu>nld be turned over. In the diajjonosis of this 

 Species where (he word rijjht or d extra 1 a])p»'ars read "left ' or 'Sinistral." 



^Appendix to vol. 11 Kent's Manual of the Infusoria. 



