302 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



Romblon, in 37 fathoms (68 meters). The material here noted has 

 a tendency to be tuberculate on the underside, as in the second 

 variety here recorded. Brady did not figure the underside of tliis 

 species, but the description infers that it is smooth. 



Spirillina limbata — Material examined. 



SPIRILLINA LIMBATA H. B. Brady, var. DENTICULATA H. B. Brady. 



Spirillina limbata H. B. Brady, var. dentlculata H. B. Brady, Rep. Voy. Challen- 

 ger, Zoology, vol. 9, 1884, p. 632, pi. 85, fig. 17.— Ousuman, Bull. 71, U. S. Nat. 

 Mus., pt. 5, 1915, p. 5, pi. 3, figs. 1, 2. 



This variety, altiiougii apparently much more common than the 

 typical, occurred, as far as the material shows, at one station — 

 1)5179, off Romblon, in 37 fathoms (68 meters), with both the 

 typical and the following variety. It is undoubtedly common in 

 the region, although material was not saved. 



Spirillina limbata, var. dentlculata — Material examined. 



SPIRILLINA LIMBATA H. B. Brady, var. TUBERCULO-LIMBATA Chapman. 



Spirillina luberculo-limbata Chapman, Joum. Linn. Soc. London, Zoology, vol. 28, 



1900, p. 11, pL 1, figs. Sa-c. 

 Spirillina limbata H. B. Brady, var. papillosa Cushman, Bull. 71, U. S. Nat. 



Mus., pt. 5, 1915, p. 6, pi. 2, fig. 4. 



From an examination of the Philippine material it seems that 

 Chapman's species, described from Funafuti, and the variety I des- 

 cribed from the Hawaiian Islands, are probably the same. The 

 occurrence of this variety with the typical seems to show that it is 

 but a varietal form, as the differences are largely in ornamentation 

 and the number of coils of the test. 



It has occurred at D5178, in 78 fathoms (143 meters), and D5179 

 in 37 fathoms (68 meters) , both stations off Romblon. The bottom 

 temperature at the shallower station is 75.7° F., (24.2° C). 



