210 Canon A. M. Norman on 



The following examples are in my collection : — 



Var. a. Alderi. — Shetland (types Barlee) ; ShetLand and 

 Bergen Fiord [A. M. N.). 



Var. b. — Shetland (with Barlee's types). 



Var. c. Barleei. — Shetland (types Barlee) ; Shetland and 

 Bergen Fiord {A. M. i\V) ; ' Porcupine,' 1869 ; Spits- 

 bergen {Smtttj as ''^ Mollia vulgaris, forma ansata^^). 



Var. d. Elwoodice. — Grey Hook, Spitsbergen, 90 t'ath. {Smitt, 

 as MoUia vulgaris, var. ansata) ; Haramerfest (^Nord- 

 gaard, cotypes of Scfnzopoi'ella Stormi) . 



Escharina Dutertrei (Audouin). (PI. IX. figs. 8-12.) 



Mastigophora Dutertrei, Hincks, Hist. Brit. Marine Polyzoa, p. 279, 

 pi. xxx\'ii. figs. 1, 2. 



Hincks describes two forms of this species, to whicli I 

 would call a little more attention. Tlie Shetland form, which 

 is abundant there in 80-170 fathoms (tigs. 8, 9), has the 

 zooecia tumid, the surface somewhat rouglily granulated, 

 with a tendency in the granulations to arrange themselves in 

 radiating lines ; six mouth-spines are developed ; the vibra- 

 cula are of moderate length ; the incision of the lip has the 

 angles generally rounded off. In one of the ' Porcupine ' 

 dredgings of 1869 the Shetland form just noticed occurred 

 in abundance, but with these were also two specimens which 

 had a very different aspect. The zooecia were much longer 

 (fig. 10 as compared with fig. 8, both drawn with the same 

 niagnifying-povver) and much more flattened ; the vibracula 

 were very long, but there were no mouth-spines, while the 

 incision of the lip had the angles sharply detined. In the 

 Antrim variety described by Hincks the zooecia are not so 

 large, but they are nearer this second variety, since they are 

 similarly flattened and have the oral opening of similar form 

 (see fig. 12). I have an allied form from Madeira, which is 

 probably that which has been more than once recorded as 

 L. Dutertrei. It is smaller, much more tumid, and the 

 vibracula arise from elevated shoulders. It may be a distinct 

 species. 



Phylactella pygmcea (Norman). 



1869. Celkporella pygmcea, Normar 



Brit. Assoc. Report for 1868, p. ; 



1880. Celleporella pygmcea, Hincks, 



As has been already recorded by Hincks, this minute 



1869. Celleporella pygmcea, Norman, " Last Report Dredging Shetland," 



Brit. Assoc. Report for 1868, p. 308. 

 1880. Celleporella pygmcea, Hincks, Hist. Brit. Marine Polyzoa, p. 415. 



