592 A. M Verrill — Tunicata and Molluscoidea of the Bermudas. 



Height of larger colonies 125 to 160"'"; breadth about the same; 

 height of free part of zooids in life, 15 to 20™™; their diameter 5 to 

 6™" ; diameter of oral tube about 2™™, 



Harrington Sound and Castle Harbor, just below low-tide, usually 

 attached to gorgonige or bryozoa. 



MOLLUSCOIDEA. 

 BRACHIOPODA. 



No species of this group, so far as I know, has hitherto been 

 recorded from the Bermudas. 



By examining carefully the under side of unbleached specimens of 

 the delicate, foliaceous coral, Mycedhmi fragile, I found a number 

 of small specimens, mostly immature, of a reddish species of Cis- 

 tella. A few were also found on the under side of Isophyllia 

 dipsacea, and on the base of Ocullna. Most of these, if not all, 

 were taken in Harrington Sound, just below low-tide mark. 



Cistella cistellula (Searles Wood). 



Plate LXX. Figure 7. 



Professor Cbas. E. Beecher, who has studied these specimens, 

 furnishes the following note : — 



"The Bermuda variety agrees in form and structure with C. 

 cistellula from Great Britain. It differs principally in its more uni- 

 form outline and in color. Typical examples of C. cistellula are of 

 a yellowish brown hue, while the Bermuda shells are nearly white 

 with four not clearly defined, broad, radiating bands of red." 



BRYOZOA or POLYZOA. 



This group is much less abundant in the Bermudas* than on the 

 New England coast or in the Florida and West Indian seas. Only 

 about 20 species, mostly well known West Indian forms, were 

 obtained by the Yale party. Most of these are incrusting sjjecies of 

 JEscharidm, found on the bases or dead parts of corals. 



A curious large form {^ Schizoporella IsabelUana, fig. 5), com- 

 mencing as an encrusting species, becomes massive by one layer of 



* Several Bermuda species have been recorded in various works, but more 

 particularly by Busk in the Challenger Reports, vols, x and xvii. Our collec- 

 tion has not been sufficiently studied to warrant the insertion of a list of species 

 new to the fauna, at this time. 



