LINGULIDA. 39 
remarkably subparallel sides and rounded point easily distinguish it from JL. attenuata ; 
and the same characters will separate it from Z. parallela, Phillips. I am very much 
inclined to believe, however, that the specimen figured as Zingula ovata by M‘Coy (‘ British 
Pal. Foss., pl. 11, fig. 6), from the Lingula-shales south of Penmorfa, Tremadoc, 
North Wales, is nothing more than an elongated specimen of Lingulella Davisii, having 
myself seen many specimens of the last-named shell assuming that shape. Mr. Salter 
assures me also that this is the case; and that Lingula ovata is strictly a Caradoc or 
Bala shell. 
Position and Locality. Lingula ovata was first described and figured by Prof. M‘Coy 
from a specimen found in the Caradoc (?) shale of Ballygarvan Bridge, County Wexford ; 
and is likewise stated to occur at Cahiranearla, or the Chair of Kildare; as well as in 
shale at Newtown Head, County Waterford. It was found by Mr. D. C. Davies in a 
light-coloured Caradoc sandstone near Bala, also east ‘of Bala Lake, Merionethshire. 
In Montgomeryshire it occurs at Llanwddyn and Meifod. Mr. Lightbody has obtained 
this shell from the Caradoc of Marshbrook. In Denbighshire it is met with south of 
Llangollen; and it was also found by Prof. Harkness in the Lower Caradoc or Bala 
shales (‘“ Dufton fossiliferous shales” of Harkness) at Pusgill, Dufton, Westmoreland. 
LineGuna ParatLELa, Phillips. Pl. Il, figs. 24—27. 
LINGULA PARALLELA, Phillips. Memoirs of the Geological Survey of Great Britain, 
vol. ii, part 1, p. 370, pl. xxxvi, fig. 1, 1848. 
Spec. Char. Hlongated, ovate, broadest anteriorly ; sides sub-parallel, merging gradu- 
ally into the slopes which form the acuminated pointed beaks; front slightly curved ; 
valves very gently convex and flattened along the middle; surface longitudinally and 
faintly striated, with still smaller longitudinal lines occupying the wide interspaces 
between the larger strize: concentrated lines of growth are also observable. 
Length 11, width 6 lines. 
Obs. This shell seems to be nearly related to the preceding one, but apparently 
distinguishable by the flatness of its valves, its very square front, and flattened middle 
area, as well as by the longitudinal striation of its surface. 
Position and Locality. L. parailela has been hitherto found only in the Upper 
Llandovery or May Hill sandstone. The specimens described by Prof. Phillips were 
obtained at Gunwick Mill, Malvern; and the typical examples are to be seen in the 
Museum of the Geological Survey. This species does not appear to be rare, being 
found at the Obelisk, Eastnor Park, as well as at the Wych, all three sections being in 
the Malvern District. 
