(not so long as the rest of the zooid in the contracted condition), and commonly directed 

 towards the mouth, producing buds in small numbers from its free extremity. Tentaculiferous 

 arms six pairs, terminating in end-bulbs, which bear numerous vesicles in their epidermis. » 



C. levinseni n. sp. (PI. I, figs. lo, 6, 5. PI. II. figs. 11 — 13. PL III, figs. 23, 24. 



PI. IV, figs. 33, 34, etc.). 



Sea between Japan and Corea. 183 M. (Copenhagen Museum). 



Female colon)'. 



Coenoecium large, subcylindrical, and slightly branched, reaching a length of at least 

 1^2 mm.: consistins" of a number of distinct zooecia, the cavities of which do not communicate 

 with one another. Orifices borne at the ends of distinct tubular peristomes, which radiate in all 

 directions, at an angle greater than a right angle, from the ])rincipal axis of the branch; each 

 being produced on its abaxial side into a single, short, blunt process which is rarely branched. 

 Metasome elongated and cylindrical, giving off the stalk from its anterior surface. Stalk thick, 

 about as long as the rest of the zooid, usually directed aborally in the adults, producing buds 

 in .small numbers. Proboscis-stalk very long, giving ri.se to a great mobility of the proboscis, 

 which usually forms a mantle-like investment passing partially round the bases of the arms, and 

 is commonly found in an inverted or otherwise displaced position. Tentaculiferous arms six pairs, 

 without definite end-bulbs or vesicles. 



I have great pleasure in dedicating this species to Dr. G. M. R. Levinsen, as some slight 

 acknowledgment of the kindness with which he placed the specimen in my hands for description. 



C. gracilis n. sp. (PL I, figs, i, 4, 7. PL II, figs. 15, 16. PL III, fig. 22. PL IV, fig. 37, etc.). 

 "Siboga" Expedition. Stat. 89. E. coast of Borneo, reef. 



Female colony. 



Coenoecium very small and delicate, with continuous cavity, creeping over other objects, 

 several times branched, and fimbriated at its extremities by long peristomial filaments borne 

 on the margins of the funnel-shaped orifices. Metasome an elongated ovoid, giving off the stalk 

 from its anterior surface. Stalk thin, much longer than the rest of the zooid, usually directed 

 aborally, and producing buds in great profusion. Tentaculiferous arms five pairs. Small end-bulbs, 

 bearing visicles, present in the first two arms of the bud, and occasionally in the third arms; 

 apparently absent in some of the adult specimens. 



C. sibogae n. sp. (PL I, figs. 2, 3. PL II, figs. 17, 18. PL IV, figs. 38, 40. PL VII, 



figs. 72 — 76, etc.). 



"Siboga" Expedition. Stat. 204. S. E. of Celebes. 75—94 W- 



Male colony. 



Coenoecium consisting of a dense basal portion which forms a continuous encrustation 



