584 BULLETIN 103, UNITED STATES NATIONAL MUSEUM. 



superiour," which is Rupolian. Should the correlation of tho Scot- 

 land "beds" with the Sin Fernando be valid, the Scotland "beds" 

 aro of tho sani3 age as the Antigua formation of Antigua, and cor- 

 roborates tho opinion expressed by Gregory. 



Allusion will here bo mido to two species of fossil corrals, that wore 

 submitted to me by Dr. J. W. Spencer and wero said to have boon 

 collected in Barbados, near the Cathedral at Bridgetown ; and I 

 gave him the generic names used in his paper referred to bolow. 1 

 Tho specimons are no longer accessible to mo, but I have photographs 

 of the species I listed as Astrocoenia species, which is the species to 

 which I have applied the name Asirocoenia porioricensis, page 350 

 (pi. 76, figs. 4,4a, pi. 78, figs. 1, la) of this volume; and I have notes on 

 the other species, referred to by me as Siylophora, species. The latter 

 species, as well as Astrocoenia porioricensis, is exceedingly abundant 

 in Antigua, where I collected between 60 and 70 specimens. It has 

 six septa and a styliform columella, characters that led me to 

 refer it to Siylophora, but as there are well-developed styles in tho 

 corners between many corrallitcs, I am now placing it in SiyJocoenia. 

 As those two species not only occur in Antigua, but as the matrix, 

 yellowish clay, in which the specimens were embedded is similar to 

 that usual in Antigua, I have wondered if the specimens did not 

 really come from that Island, and not from Barbados. 



Messrs. Harrison and Jukes-Browne, it seems, became much 

 excited over the reported occurrence in Barbados of the two species 

 of corals mentioned above. 2 I will not enter the controversy between 

 these authors and Doctor Spencer further than to say that if tho 

 two species whose tentative identification I gave Doctor Spencer 

 actually came from Barbados, their evidence is decisive as to beds 

 of the age of the Antigua formation being in Barbados, and that 

 the evidence of the corals is in accord with Gregory's correlation of 

 the Scotland "beds"; but if the specimens wero obtained at the 

 locality at which Doctor Spencer says he found them, the Scotland 

 "bods" must be very near the surface in Bridgetown, and tho veneer 

 of the elevated coral-reef limestone decidedly thin. The area 2.75 

 miles northeast of Bridgetown is indicated on Messrs. Harrison and 

 Jukes-Browne's geological map of Barbados as "limestone probably 

 underlain here by Scotland beds." Careful search should be made 

 for corals in the material underlying the elevated reef in Bridgetown, 

 and if the older coral-fauna is there, additional specimens will 

 almost certainly bo found, for tho two species reported from there aro 

 usually represented not by occasional but by numerous specimens, 

 if present at all. 



i Spencer, J. W., On the geological and physical development of Barbados; with notes on Trinidad, 

 Geol. Soc. London Quart. Journ., vol. 58, pp. 354-365, 1902. 



s Harrison, J. B., and Jukes-Browne, A. J., The geology of Barbados, Geol. Mag., vol. 9, pp. 550-554, 

 Dec. 4, 1902. 



