228 BULLETIN OF THE BUREAU OP FISHERIES. 



Ceratomyxa agglomerata, n. sp. (PI. xix, fig. 44, 45.) 



Trophozoite. — Vegetative trophozoites colorless, transparent, pyriform, usually with long, slender, 

 posterior process (fig. 44). Actively motile, moving by means of characteristic wavelike movements 

 of the ectoplasm, from which are projected numerous short, conical to filiform pseudopodia. The 

 pseudopodia travel back along sides of body for about one-third its length and then disappear, new 

 ones being continually formed at the anterior end. Ectoplasm, distinguishable only at anterior end, 

 where it forms a distinct layer extending back along the sides for a short distance. Endoplasm clear, 

 very transparent, usually homogeneous, sometimes finely granular. In some cases homogeneous 

 spherules can be indistinctly seen in the endoplasm. Large numbers of fat globules usually present, 

 which are for the most part collected into one to several clumps in a characteristic manner (fig. 44). 



Length of sporulating trophozoites about 38^, width about 12/1. 



Disporous. 



Spore. — Asymmetrical, one valve being somewhat smaller and more attenuated than the other 

 (fig. 4s); larger valve compressed parallel to longitudinal plane. In some instances the difference 

 between the valves is not as great as figm'ed. Capsules spherical. Coiled filaments indistinct. Sporo- 

 plasm filling nearly entire smaller valve, but only extending a short distance into the larger. 



Length of spore 24-28;^, width 5^; diameter of capsules ^n. 



Habitat. — Abundant in the gall bladder of Synodusfoetans. Nearly all the fish of this species taken in 

 the harbor, except in the case of very young individuals, were found to be infected. 

 Ceratom3rxa amorpha, n. sp. (PI. xix, fig. 46, 47.) 



Trophozoite. — Vegetative trophozoites colorless, rounded or irregular in shape, with short, lobose 

 pseudopodia (fig. 46); not pyriform; slowly amoeboid. Ectoplasm well developed, forming a distinct 

 layer around entire trophozoite ; transparent, finely granular. Endoplasm granular, with large numbers 

 of small fat globules scattered through it or aggregated into one or two large clumps, not collected into a 

 niunber of small clumps as in C. agglomerata which occurs in the same host. 



Disporous. 



Spore. — Asymmetrical; crescent-shaped; valves short, conical, somewhat compressed parallel to 

 longitudinal plane; one valve distinctly smaller and more conical than the other (fig. 47). Sutural 

 plane perpendicular to longitudinal axis; sutiu-al line distinct. Capsules large, conspicuous, opening 

 at some distance from the capsular side. Coiled filaments distinct. Sporoplasm distinctly granular, 

 unsymmetrically situated, being chiefly confined to smaller valve. 



Length of spore 27M, width ii^i; diameter of capsules 4m. 



Habitat. — Occurs in the gall bladder of Synodusfoetans. 



Remarks. — This species has been found only in fish collected outside the inlet and was present in 

 two out of three fish examined. A number of these fish collected inside the harbor have been examined, 

 but in no case did they show any traces of this species, although C. agglomerata were abundant. This 

 would seem to indicate that the lizardfish from outside rarely enter the harbor. 

 Ceratomyxa monospora, n. sp. (PI. xix, fig. 48-51; pi. xx, fig. 52-57.) 



Trophozoite. — Vegetative trophozoites colorless, very transparent, pyriform, usually with a short 

 slender posterior process and one to several filiform pseudopodia at the anterior end (fig. 48-50). 

 Trophozoites usually become rounded and motionless a short time after being removed to the slide. 

 Progressive movements very slow. Ectoplasm not clearly distinguished from endoplasm, the entire 

 trophozoite being composed of a clear, finely granular protoplasm. Larger trophozoitescontain numerous 

 small fat globules, which are usually aggregated into small clumps (fig. 48); fat globules much less abun- 

 dant in small individuals (fig. 49). In some cases after having been on the slide for a short time small, 

 homogeneous, spherical bodies could with difficulty be distinguished in the endoplasm. They were not 

 observed in trophozoites which had just been removed from the host and are possibly to be regarded as 

 the result of degenerative changes. 



Length of vegetative trophozoites up to about 24^, width up to about 15^4. Monosporous tropho- 

 zoites much smaller than disporous. 



Monosporous and disporous. Monosporous trophozoites are considerably more abundant than the 

 disporous. The spores are relatively large, nearly the entire substance of the trophozoite being used 

 up in their formation (fig. 51-54). 



Spore. — Crescent-shaped; valves cylindrical, tapering gradually toward the end, which is rounded 

 and compressed parallel to longitudinal plane (fig. 55-57); valves show considerable variation in amount 



