HIBMOCYSTIS. 105 



two to several individuals, often attached laterally. Peculiar 

 associations of two primites with a single satelhte sometimes 

 met with. Ratio of length of protomerite to total length as 

 1 : 13 ; width of protomerite to width of deutomerite as 

 1:1-1. Epimerite a simple rounded knob. Protomerite hemi- 

 spherical ; deutomerite cylindrical, rounded or flattened 

 behind. Satelhte usually longer than the primite, tapering 

 posteriorly. Nucleus spherical or oval, with smgle karyosome. 

 Gametocysts and sporocysts not known. 



Dimensions. — Associations, maximum length 473 ju,, maxi- 

 mum width 22 ju, ; free sporonts 20-70 /x. 



Remarks. — As in Hirmocystis (?) parapeneopsisi Set. & Bh., 

 a few cases were seen of a unique type of association in which 

 two primites were followed by a single satelhte. Both 

 the primites and the satellite were of a slender type and com- 

 paratively short in length. 



In the lateral type of syzygy great diversity of form and 

 attachment is met with. There may be a satellite in a line 

 with the primite, and a second satelhte arise from the side of 

 the primite near its posterior end, or both the satellites may 

 be attached laterally and diverge like two legs. Sometimes 

 there are three satellites, all attached to the posterior end of 

 the primite, and in still others several individuals may be seen 

 attached to the posterior end of the first satelhte. 



The form resembles Protomagalhiensia in as much as the 

 sporonts are attenuate and form associations of several 

 individuals, while lateral attachment of sporonts is common. 

 Spores in that genus are of a characteristic barrel-shape, with 

 a spine at each corner. Until the spores are known the species 

 cannot definitely be placed. 



Habitat. — Intestine of the prawn, Parapeneopsis sculptilis 

 (Heller) : Bombay, Bombay. 



Genus HIRMOCYSTIS Leger, 1892. 



Eirmocystis (corr. Hirmocystis), Leger, 1892, p. 110. 



Hirmocystis, Labbe, 1899, pp. 12-13 ; Watson, 1916, pp. 167-9 ; 

 Kamm, 1922, pp. 11, 74-5 ; Reichenow, 1929, p. 896 ; Calkins, 

 1933, p. 562 ; Henry, 1933, pp. 102-9 ; Setna & Bliatia, 1934, 

 p. 35. 



Sporonts in associations of two to twelve (or more) in linear 

 series, sometimes bifurcated or trifurcated. Epimerite a small 

 conical or cylindrical knob, caducous. Gametocysts spherical : 

 dehiscence by simple rupture. Sporocysts ovoidal, with two 

 coats. 



