1907.] FIIOM THE CAPE VERDE ISLANDS. [47] 



rings; the reniMiiider, which varies much iu length, being sniootli 

 or very slightly crunipleil. 



The gonosomes, which are present in numbers, agree exactly 

 with Alhnan's description. 



The colonies here described agree in all but size with beaiitif\illy 

 pi'eserved specimens of the species from the Naples Biological 

 Station. 



Locality. St. Vincent, Cape A^'erde Islands. Obtained from 

 bottom of a lighter, .30th July, 1904; by diving among coral in 

 2 fathoms of water, 2'2nd July, 1904; also fine colony in tidal 

 pool, 2r)th July, 1904. 



Family T u b u L A n 1 1 d .«. 



TuBULARiA iiuMiLis Allman 1864. 



A few simple or slightly branched stems varying from 0'5 to 

 4 em. in height, and 0'.5 mm. in diameter, may be referred to this 

 species. The specimens oljtained in one dredging are much smaller 

 than those described by Allman, varying from 5 to 12 mm. in 

 height ; but the following points have been relied on in identifi- 

 cation : — simple or slightly branched stems with, here and there, 

 fain tlj- marked transvei-se rugosities ; delicate, light-j'ellowperisare; 

 a ccenosarcal collar suppoi'ting the hydranth ; small hj'dranths, 

 1'2 mm. in height, longer than broad, with, in the individuals 

 examined, 17, 13, 11 tentacles in the distal whorl, and 19, 17 in 

 the proximal. The tentacles are in a state of contraction, and 

 consequently the proximal whorl is only l'8mm. in diameter from 

 tip to tip. 



Gonosome. — In the specimens obtained on the 30th of July 

 gonophores ai'e present in erect clusters borae on short pedicels. 

 In some of the more mature, actinuhe can be seen. 



Locality. St. Vincent, Cajie Venh; Islands. Found growing on 

 the bottom of a lighter en 20th and 30th Jidy, 1904. and by diving 

 among coral in 2 fathoms of water on 22nd July, 1904. 



TuBULARIA SOLITARIA WalTeU 190(5. 



A few .solitary individuals, 8 mm. in height, are growing upon 

 a sponge-like layer encrusting a small lamellibranch shell. The 

 individuals are fixed in the layer by a club-like, sometimes branched 

 " root," and are crowned by a distal circle of stout tentacles 1 3 or 

 14 iu nundiei', the lower portions of which are adnate to the 

 hypostome, appciu-ing as strong ridges upon it. The proximal 

 tentacles, which are nu)re slender than the di.stiil, arise from the 

 broadened base of the hydranth in a whorl of about 30, rather 

 more than in Dr. Warren's specimens. Otherwise, the present 

 specimens, with delicate peri.sarc, distinct endodermal canals in 

 the hydrocaulus, erect blastostyles originating just within the 

 proximal whorl of tentacles anil bearing from two to five or six 

 gonophores, agree with the descriptiim of the type. 



The gonoiihores in our specimens are mosth- at an e.arly stage, 



'493 



