11 
Orf/d’r— TUBULOSA. 
Genus — AULOPORA, Goldfuss. 
Aulopoea pasciculata, L. G. de Kotilnclc. 
PI. I, fig. 1. 
The coral consists of two sets of corallites, having at the base a common 
point of origin, and growing obliquely to right and left in the shape of a 
capital V, with the exception that the inner angular portion is occupied 
equally by several individuals whose growth has been stopped in about mid- 
height. Corallites creeping, attached along their entire length, cylindrical, 
calice oval, but little prominent; their diameter is only two-thirds of a 
millimetre, and the entire length of the coral is not more than a centimetre 
and a half. 
Relations and Differences . — This species is easily distinguished 
from all those known up till now by its form and the small size of the 
corallites. 
Horizon and Localities . — One piece of compact yellowish grey lime- 
stone, on which is a complete sj)ecimen and part of another, has been found 
on the bands of the Bell (Bell Biver). The same rock contains an example 
of Monticulipora pulcliella, Milne Edwards and J. Haime. I am convinced 
that both these species belong to the Silurian, because they are associated 
with Ortliis canaliculata, Lindstrom and Rlasmopora petaliformis, Lonsdale, 
which are forms found only in that System. 
Order — TABULATA, 
G'ewMs— SYBINGOPOBA, Goldfuss. 
Syeingopoea seepens ? LinncBiis. 
Tuhipora serpens, Linnaeus, 1767, Syst. Nat., ed. xii, p. 1271. 
jLulopora serpens, Lonsdale, 1839, in Murchison’s Silurian System, p. 675, pi. 15. 
,, GOnglonierata. Id., 1839, Ibid., p. 675, pi. 15, fig. 9 {non Goldfuss). 
Syringopora serpens, Milne Edw. and J. Haime, 1852, Mon. Brit. Eoss. Corals, p. 275,. 
pi. 62, fig. 2. 
)» )) Salter, 1858, in Murchison’s Siluria, p. 531, pi. 41, fig. 6 and 9. 
Good specimens of this species prove that while young it is creej)ing, 
and resembles an Aulopora, and that afterwards the corallites straighten and 
D 
