388 HELIX PISANA. 
VARIATIONS IN MARKINGS OF SHELL. 
Var. lineolata Moquin-Tandon. 
Helix alboranensis Webb and Berthelot, Pfr. Mon. Helic. Viv., 1848, p. 153. 
/lelix pisana vars. lineolata, bifrons, interrupta, punctella and teniola Mogq.-Tand., 
Hist. Moll. France, 1855, p. 260. ee is 
Helix pisana var. sertum Monts., Moll. terr. Sicilia, 1892, p. 15. 
Helix pisana vars. bilineata and musica Monterosato, MS. 
Helix pisana sub-var. coalita Taylor sub-var. nov. 
The var. lineolata is deseribed as a whitish shell, with numerous slender brown 
and rufous lines. (See Monogr., pl. xxx., f. 16). 
This variety, with its several subsidiary modifications, is perhaps the most 
abundant of the numerous forms the species assumes. 
SS aa 
presse + <0 hers ~ s rs, 
Wa gl” 
Fic. 439. Fic. 440. Fic. 441. Fic. 442. 
Subvariations of the Helix pisana var. lineolata Mogq. 
Fic. 439.—AHelix pisana sub-var. coalita Taylor, Tenby, Pembrokeshire, Mr. A. G. Stubbs. 
Fic. 440. —Aelix pisana sub-var. tentola Moq., Tenby, Pembrokeshire, Mr. A. G. Stubbs. 
Fic. 441.— Helix pisana sub-var. bifrons Moq, Jaffa. Syria, Mr. F. H. Sikes. 
Fic. 442.—Helix pisana sub-var. punctella Moqg., ‘enby, Pembrokeshire, Mr. A. G. Stubbs. 
The snb-var. musiea is described as having a whitish ground, with many fine 
and slender dark spiral bands arranged in groups with broader white spaces 
intervening, and resembling a sheet of music paper. (See Monogr... pl. xxx., f. 17). 
The sub-var. eoalita has a whitish ground with the spiral linear bands longitud- 
inally fused in several groups or sections. 
The snb-var. taeniola possesses one dark band above the periphery, resembling 
H. virgata in this respect. (See Monogr., vol. i., pl ii., f. 10; and ff. 20 and 21, 
pl. xxxi., also shew this pattern of banding). 
The sub-var. bilineata is whitish with two dark bands above the periphery, and 
sometimes others less conspicuous below. (See Monogr., pl. xxx., f. 18). 
The sub-var. bifrons is described as uniformly white or whitish above, and 
banded below the periphery. 
The sub var. interrupta is described as whitish with the spiral banding more 
or less broken up or interrupted. 
The sub-var. punetella is described as whitish with brown or blackish spots 
above, and bands below periphery, but I restrict the application of this term to 
shells in which all the bands are broken up into more or less elongate spots. (See 
also Monogr., pl. xxx., f. 19). 
The sub-var. alboranensis W. & B. was described by Pfeiffer in 1848 as small 
and subdepressed with a partially closed umbilicus, but in 1876 he redescribed the form 
as small and somewhat globose, with a minute but distinct umbilicus, and numerous 
bands, though sometimes unicolorous or marbled. In the specimen figured the 
interior is of a dark purplish hue. (See Monogr., pl. xxxi., f. 12). It is figured in 
the new edition of Martini und Chemnitz’s Conehylien Cabinet, Helix, pl. 37. 
This lack of precision in regard to the characters of this variety prevents the 
name superseding Moquin-Tandon’s var. lineolata as the type of this section. 
The sub-var. septum is described as possessing numerous dark spiral lines, the 
one nearest the suture resembling a garland. (See Monoer., pl. xxxi., f. 11). 
The var. albida of Lallemant (Mal. Alyer., 1868, p. 37) described as whitish 
with faint flammules, may be a pale form of the sub-var. punctedla. 
The spiral banding which was formerly but erroneously believed to fade or even 
disappear with age is liable to so many subsidiary modifications that Dr. E. von 
Martens compiled a very complicated tabular exposition of those known at the 
time, which was published by Dr. Hartmann. 
WALES. 
Pembroke—Var. /ineolata and sub-vars. bifrons, coalita, and teniola, Tenby ! 
also sub-var. bilineata, South Cliff, Tenby ! A. G. Stubbs. 
York N.E.—Dwarf specimens, labelled ‘‘Scarbro’,” received from General Tripe 
in 1903 by Mr. J. C. Melvill, 
