Fossils from Mulde, Gotland. 143 
segmented in a few places. Apertures at the terminations of 
the branches. Greatest length 2°66 millim.; average width 
of tube *23 millim. 
This species is somewhat like Sagenina frondescens 
(Brady) in habit of growth, but it has a smoother tube and is 
without the smoothly finished apertures at the ends of the 
branches ; the latter also are more outspread. 
Silurian; Mulde, Gotland. Attached to the interior of a 
Brachiopod shell. 
Family Lituolida. 
Subfamily Ewporuyrervz. 
SracHeiA, Brady [1876]. 
Stacheia amplexa (Vine). 
Psammosiphon amplexus, Vine, 1882, Quart. Journ. Geol. Soc. 
vol. xxxviii. p. 391, pl. xv. tig. 8. 
Stacheia amplexa (Vine), Chapman, 1895, Ann, & Mag. Nat. Hist. 
ser. 6, vol. xvi. p. 323, pl. xil. figs. 6, 7. 
Reference has already been made to the discovery of 
S. amplexa in the Silurian clay of Gotland in my paper on 
the Rhetic Foraminifera of Wedmore*. ‘The Gotland 
specimens are of a pale grey colour, but in all other respects 
are like the Carboniferous and Rheetic specimens. 
Silurian ; Mulde, Gotland. Common. 
Stacheia stomatifera, sp. n. (PI. IIT. fig. 2.) 
Test calcareo-arenaceous ; normally attached or resting on 
one surface, somewhat depressed and lobulated. Apertures 
slit-like and salient, on the superior face only. Longest 
diameter of specimen found 5 millim. 
Silurian; Mulde, Gotland. 
C@LENTERATA, 
Class ACTINOZOA. 
Order ZOANTHARIA. 
Syrincopora, Goldfuss [1829]. 
Syringopora serpens (Linné). [Young specimens. 
(BITE fie. 3:) 
Tubipora serpens, Linné, 1767, Syst. Nat. 12th ed. p. 1271. 
Syringopora serpens (L.), Edwards & Haime, 1854, Mon. Brit. Hoss, 
Corals, pt. v., Pal. Soc. p. 275, pl. Ixv. figs. 2, 2a. 
* Ann. & Mag. Nat. Hist. vol, xvi. (18990) p. 324. 
Lis 
