464 MEMOIRS OF THE UNIVERSITY OF CALIFORNIA 



length of the body from the antapex. It lies in a broad, deep depression, and has a width of 

 0.06 transdiameter and is bordered by overhanging lips. The anterior flagellar pore is located 

 at the proximal junction and the posterior pore at the distal junction of the girdle and sulcus. 

 The transverse flagelhim traverses approximately tlie entire length of the furrow. 



The sulcus forms a wide loop above the anteroir flagellar pore, curving over the top of the 

 epicene just ventral to the apex and terminating midway between that and the girdle. It is 

 deeply imbedded like the girdle throughout its entire length, the lips forming high overarching 

 ridges. Below the anterior flagellar pore it sweeps around for 0.5 turn before joining the distal 

 end of the girdle, beyond which it passes to the antapex directly without antapical loop. Its 

 total torsion is about 1.2 turns, but the spiral course is obscured by the ventral deflection of the 

 apical loop. 



The ocellus is located far anterior at the left of the distal end of the intereingular sulcus 

 close to the posterior flagellar pore. Its length is 0.37 transdiameter and it is directed antero- 

 sinistrally at about 45° from the vertical. The ocellus is of the concentrated type with subequal 

 hemispheroidal lens and pigment mass. The lens is laminated, with three equidistant hyaline 

 laminae, bluish in color." Closely imbedding its base is the pigment mass of dark brownish black 

 pigment enclosing the central core of a lighter brown tone. 



Tlie nucleus is ellipsoidal and located dorsally slightly in front of the equatorial plane. 

 Large chromatin strands follow the course of its major axis. Its axes are 0.57 and 0.40 trans- 

 diameter in length respectively. 



The cytoplasm is finely granular, containing only a few oil globules in the midregion. Two 

 cinnamon rufous food masses were present in the indi\'idual figured. No pusules were observed. 

 Neither surface markings nor striations were present. 



The color is a mottled pink distributed through the cytoplasm, occasionally showing a 

 noticeable granular appearance. In the specimen figured three small, rose-red globules of pig- 

 ment were found in the periphery in the equatorial region. The organism was enclosed in a 

 large, ovoidal, thin, hyaline cyst 1.2S lengths of the body in length. 



An encysted individual (fig. P, 1) was also present in the haul on July 2, 1917, which, from 

 its size, color, and type of ocellus, we place in this species. The body had rounded up into a 

 sphere, with a central, spherical nucleus, peripheral hemispherical pigment mass, with adjacent, 

 detached, partially disintegrated lens. It was immediately surrounded by a delicate, close fitting 

 film, outside of which, as a cap covering nearly two-thirds of the sphere, was a degenerating, 

 cytoplasmic cap containing local aggregates of brownish pigment. The whole was enclosed in 

 an oblong hyaline outer cyst over twice the diameter of the sphere in length. It appears that 

 the encysting animal must have shed off or extruded a considerable mass of plasma containing 

 pigment between the formation of the outer and inner cysts. 



Dimensions. — Leiigth, 50-73/*; transdiameter, 25-50m; axes of nucleus, 

 25-30/t and 15-21/^; length of ocellus, 9-18/*; length of cyst, 94m-; its transdiam- 

 eter, 70/^. 



OocuREEXCE. — Two Specimens, both encysted, were taken on July 2, 1917, 

 6 miles off La Jolla, California, with a No. 12 silk net in a haul of 60 meters 

 to the surface and in a surface temperature of 21-9 C It occurred again on 

 August 15 in a haul taken 0.75 mile off La Jolla, California, with a No. 25 silk 

 net from 80 meters to the sui'face in a temperature of about 22?5 C. 



Comparisons. — Pouchefia ruhescois is a tA'^iical representative of the sub- 

 genus Punch eticlla with highly integrated ocellus, in the case of both the lens 

 and pigment mass. It is near P. snhnigra, but differs from it in several fea- 

 tures. The length of the epicone at the proximal end of the girdle in P. suh- 

 nigra is 0.3 and in P. rubescens is 0.45 length of the body and the apical loop of 



