A. E. Verrill — Tunicata and Molliiscoidea of the Bermudas. 598 



zooecia growing over another, and finally, by surrounding the tubes 

 of serpulse or other objects and growing beyond them, forms large 

 groups, often 6 inches high, of thin-edged tubular branches, having 

 the thin expanded tips, in life, light pink or orange-red. Its aper- 



Figure 5. — Schizoporella Figure 6. — Bugula (or Acamarchis) 



Isabelliana ? ; group of neritina ; x, zooeia ; Y, aperture ; 



cells ; much enlarged. o, o, oceeia. 



tures have a rounded pi'oximal eraargination. The acute pedicel- 

 larise are at the sides of the aperture. When dried this species 

 becomes dark purplish brown or blackish. Sippothoa, or Schizo- 

 porella, spongites is also common in foliaceous growths on corals. 

 Other common forms are Amathia lendigera, a Lichenopora like L. 

 radians, and Crisia denticulata. 



One large, brown, thickly-branching species of JBugida [B. 

 neretina, fig. 6) is common. It grows four or five inches high. 



A much more delicate, white Bugula consists of divergent fan- 

 shaped branches attached to the alternate sides and to the tip of 

 slender jointed stems, sometimes having alternately a long joint 

 and a very short joint, but more frequently the short joint is lacking 

 and the ends of the long joints are swollen, as in Siirparia. 



There are usually 2 or 3 annulations at the base of each main 

 branch, and these arise just below the internodes. Many of the cells 

 have a slender distal vibraculum, or sometimes two. 



It should, doubtless, form the type of a new genus or subgenus 

 ( Caidibicgula), intermediate between Bugula and Bicellaria, on 

 account of its articulated spines or vibracula, and related to Stir- 

 paria by its jointed stem. It may be named Bugula ( Caidibugida) 

 armala. Its zooecia are oblong and biserial, alternate ; the pedicel- 

 larige are on short pedicels, large, lateral, not numerous. 



A small intricately branched cellularian, Scrupocellaria cervicor- 

 nis (Smitt, as Cellularia from Florida) with antler-shaped markings 

 on the fox'nix or shield, long vibracula, and 4 to 6 distal marginal 

 spines, is common. 



