136 
iferous of Kaskasia, Illinois to Vine and Ulrich in 1883. Ulrich, in an 
1884 manuscript, named them Streblotrypa nicklesi and this de- 
scription subsequently appeared in print (Ulrich 1890: 667). However, 
before the appearence of Ulrich’s paper, Vine (1884b: 391) pub- 
lished a description of the American specimens together with some 
specimens from Yorkshire and named them as‘. nicklesi, stating that 
this was the name used by Ulrich in his manuscript which as such 
‘had no validity’. Yet in his subsequent papers Vine (1885, 1889) 
credits the genus and species, which he consistently names as 
nicklesi, to Ulrich. As was clear later Ulrich had in fact named the 
taxon S. nicklesi, and Hageman (1993) has corrected Vine’s error 
and quotes Ulrich’s spelling as the correct name of the type species, 
and credits Ulrich in Vine as the author. S. minuta, described as a new 
variety by Vine in 1885, was later considered by him to be a variety 
of S. ‘nicklesi’ (Vine, 1889). 
Unfortunately, Vine’s original specimens are lost, and it is possi- 
ble that the American and English forms are not conspecific. 
Therefore, what is now in question is the original concept of the 
species and the validity of Hageman’s designation of the neotype: 
should the concept be based upon the American specimens (as is 
generally agreed (Blake 1983)) or on the now missing British 
specimen? If it is shown that the original material belonged to two 
separate taxa then perhaps either the American or British material 
needs renaming. New collecting is needed at Vine’s original locality 
at Hurst, north Yorkshire, which may yield specimens of Streblotrypa, 
so that comparison with the American material can be made. 
Subgenus STREBLOTRYPA (STREBLOTRYPA) (Ulrich MS.) 
Vine 1884b 
DISCUSSION. Blake (1983: 590) recognized two subgenera in 
Streblotrypa: S. (Streblotrypa) and S. (Streblascopora) Bassler, 
1952. This differentiation is based on the number of axial zooecia 
contained in the endozone, the location of metapores between 
autozooecial apertures, and the presence or absence of hemisepta. 
Species of S. (Streblascopora) display a distinct axial area with more 
than 10 axial zooecia. Metapores are frequently found beyond the 
lateral margins of autozooecia, and hemisepta are rare or absent. The 
opposite holds for S. (Streblotrypa). 
Streblotrypa (S.) pectinata Owen, 1966 Figs 33-36 
v1966  Streblotrypa pectinata Owen: 144, pl.10, figs A-C. 
MATERIAL. BMNH PD9565-9579; TCD.34049, 34124, 34129, 
34130, 34140: BELUM K3239, Upper part of the Glencar Lime- 
stone (Viséan, Asbian), Carrick Lough, County Fermanagh. 
TCD.42529-42530, Upper part of the Glencar Limestone (Viséan, 
Asbian), Sillees River, County Fermanagh. 
DESCRIPTION. Zoarium ramose and composed of cylindrical 
branches 0.67 to 1.04mm in diameter with a circular cross-section. 
Figs 33-35 Streblotrypa pectinata Owen, 1966; Upper part of the 
Glencar Limestone (Viséan, Asbian), Carrick Lough, County 
Fermanagh. 33, BMNH PD9565; 33a, zoarial fragment showing 
dendroid colony form, oval-shaped autozooecial apertures arranged in 
longitudinal rows, with three to four rows of metapores developed 
between, x35; 33b, detail of 33a, x150. 34, BMNH PD9578; 34a, 
tangential section showing autozooecial apertures surrounded by small 
metapores (arrowed), x100; 34b, detail of 34a, x100. 35, BMNH 
PD9579; 35a, longitudinal section showing thin exozone pierced by 
acanthostyles, x30; 35b, detail of 35a showing acanthostyles in 
exozonal wall — the calcite rods clearly deflect the skeletal laminae of 
the outer wall, x100. 
