MR.. H.. B. BRADY ON THE. RHIZOPODAL. FAUNA OF THE SHETLANDS. 467 
cedence as the varietal term for those marked by delicate strim. The distinction: between 
Triloculina and Quinqueloculina is: a. purely artificial one; probably the only forms per- 
sistently showing three external chambers, are. Tviloculina trigonulw and. T. tricarinata, 
The single specimen found in. these dredgings: assignable to. Q. pulchella is:a somewhat 
monstrous one, the outermost chamber having deep lateral constrictions, apparently 
dividing it into several segments. Long diameter 4. inch. 
No. 19. TROCHAMMINA INFLATA, Montagu, sp. 
Rotalina inflata, Will. 
A few young specimens, obtained. by Professor Williamson from Shetland sands com- 
municated by Mr. Barlee. (See Will. Rec. For.. Gt. Brit. p. 50, pL. 4.. figs, 93 & 94.) 
No. 20.. LITUOLA scogPIURUS, Montfort, sp. (Plate XLVIII. fig. 5.) 
This is a feeble form of Lituola, having the characteristic rough, arenaceous test.; the 
chambers are arranged in a straight line instead of spirally as in the type L. nauti- 
loidea. Professor Williamson. figures im his first plate what may possibly be a single 
chamber of this shell, but many perfect specimens have: occurred both to Mr. Waller and 
myself. Length 7y inch. (See Ann. & Mag. Nat. Hist. 3rd ser. vol. vi. p. 346.) 
No. 31. LAGENA CAUDATA, d'Orb., sp. 
Entosolenia globosa, var. lineata, Will.. 
Found in this locality by Mr. Barlee. (See Will. Rec. For. Gt. Brit. p. 9, pl. 1. fig. 17.) 
No. 32. LAGENA pistoma, P. & J., MS. (Plate XLVIII. fig. 6.) 
A beautifully delicate elongate variety of Lagena sulcata, W. &. J., having an aperture 
at each end of the shell. It has a long fusiform shape, two equal and symmetrical ends, 
and a surface-ornamentation of delicate longitudinallines. It was described and figured 
by Messrs. Parker and Jones (who have since named it L. distoma) im their paper on 
the Foraminifera of the Coast. of Norway (Ann. & Mag. Nat. Hist. 2nd ser. vol. xix. 
pl. 11. fig. 24) Only one specimen has been found in the Shetland dredgings, but several 
have been taken in sand dredged om the coast: of Northumberland. It occurs in a sub- 
I condition in the clay of the Fens near Peterborough. Length gg inch, breadth 
$9 inch*, 
8 Since writing the above, I have received a copy of a Memoir by Professor Seguenza (‘ Dei Terreni. Terziarii del 
Distretto di Messina e dei Foraminiferi Monotalamici delle Marne Mioceniche Messinesi,’ scritta da Giuseppe Seguenza : 
Messina, 1862) containing figures and descriptions of a considerable number of what seem to be sn Lagena. 
In this work, the forms of Lagena which are produced at both extremities sufficiently to assume ciii a - = 
: ter are included. under a separate: genus, Amphorina,, d'Orb., and. the author does not appear to have n ia 
that in many, if not in most instances, shells in this condition have two apertures, as 1 easily seen r e E 
All the varieties of Lagena are liable to assume the peculiarity alluded to, and do so frequently in a mamner 
^ | han mere 
m 206 admit of the assumption that it is either a generic or even a specific 2 ب‎ id J in iot 
Onstrogi "had i een thought by Messrs. Parker 
ty on the other, The form described in the text has b y he single-apertured series. 
Subspecific name, there not being, so far as is known, any precise analogue to it in t 
