:v.r. 



On Flohculai'ja cucullata, sp. n. 

 By John Hood, F.R.M.8. 



{Communicated hj/ Chas. F. Rousselet, F.R.M.S., Nov. I7th, IHU.'i.) 



Plate XVI. 



Specific characters. — Corona divided into three lobes without 

 knobs, the dorsal lobe much the largest, incurved and cowl- 

 shaped, with two short horn -like prominences close together on 

 the back ; the two ventral lobes small ; setae, a double row, one 

 row pointing inwards, the other outwards, fringing the whole 

 circumference of the margin of the coronal cup; the inner row 

 consisting of very short closely-set seta?, and the outer row of 

 long, radiating seta?. Peduncle very short. Eyes absent in 

 adult. 



I first met with this large and handsome Rotiferon in the 

 summer of 1881, but having found only a single specimen, and 

 this one not in a healthy condition, I was at that time unable 

 to make a satisfactory diagnosis, otherwise it would have been 

 described and figured long ago in Dr. Hudson and Gosse's 

 " Monograph." Although I searched for it diligently ever 

 since, now quite twelve years, I failed to find it again until the 

 last week in September of this year (1893), when I had the good 

 fortune to discover it in fairly large numbers and in prime 

 condition near the same locality where I had met the first 

 example, namely, in a marsh pool between Blairgowrie and 

 Duiikeld, in Perthshire, N.B., perched on confervoid filaments 

 attached to Utricularia vulgaris, and on the rootlets of Lernna. 



The most remarkable peculiarity of F. cucullata consists in 

 the shape and structure of the corona, the large dorsal lobe 

 recalling to mind a inonk's cowl, and resembling in this respect 

 the corona of F. Hoodii, but minus the long sleeve-like, flexible 

 processes characterizing this species. It has, however, two 

 very saort processes on the ])ack of the dorsal lobe, greatly 

 resembling the pimples of antenna (Fig. 2;, but bearing no 



