A Keview of the Land Mollusca of Western Australia. 
31 
change can be seen. The columella is rellecled, closing' the umbibcus as a 
general rule, but in some cases as in trilineatun typical, as hero shown, the 
swelling of the body whorl allows the retention of a slight chink indicating 
that the juvenile is perforate. A circumihlical red patch is ir ually present in 
this group. The two speciinen.s figured are from the type locality, and represent 
normal lingii and trillHCdtnu. the former measuring 24 mm in length, by 
13 mm. in breadth, the Initer lieing '29 mm. in length, by 15 mm. in breadth. 
The ty])e of Pilsbry’s var. humilis is also here ligured, and it measures 
17.5 mm. in hmgth, by 10 mm. in breadih. 11 is obviously referable to this 
series, but differ.s from tlie typical form in showing a coarser longitudinal 
radial ribbing, cut by a few concentric lines on the eaT'lier Avhorls and on the 
shoulder of the last whorl. There is an umbilical chink, and no red circum- 
bilical patch, and somewhat similar shells have been seen from the Pallinup 
River, South Coast. 
Bothriembryon notatus sp. nov. 
Plate II., fig. 29. 
An excellent series from the Pallinup River, south coast, recalls 
B. jaclfscni, but the shells are narrower and have a paler ground colour. 
Shell thin, elongate, of the Ungii style, but the spire not so attenuate, and 
the mouth is e(|ual to the spire in length. Coloration greyish-white longi- 
tudinally flamed with red brown, the markings varying in intensity, some 
showing few marks being almost iniieolor, while others have the markings 
running together so as to produce an almost uniform dark shell. The red 
circumbilieal ])alch is always present. The apex is of the typical kingii 
form, the succeeding whorls sculptured with wid(‘ longitudinal ribbing, which 
is most pronounced below the suture producing a puckered collar. This per- 
sists on to the body whorl, where otherwise the ribbing becomi's obsolete. 
The columella is reflected so as to hide the umbilicus, which, however, re- 
mains open as a chink. Length 24 mm., breadth 11 mm., length of ai)erture 
12 mm. 
Bothriembryon jacksoni sp. nov. 
Plate II., fig. 30. 
A very interesting form of the kinfjU series was collected by i\Ir. Sidney 
W. Jackson at Dee)) Hiver, Krankland River, Nornalup, to the west of King 
George Sound, on ti'ces and shrubs in the hazel scrub among the karri. 
It lacks the acuminate .spire having a rather swollen body whorl with 
a conical short s|)ire, the texture thin, the colouring bright fawn with deep 
red brown streaks, and a deep red brown circumbilieal |iatch. The apex is 
finely regularly jninctate throughout the two whorls, the sculpture on the 
subsequent whorls being conqiosed of rude radials crossed lightly on the 
earlier whoi’ls by line concentric lines forming a line nodulation at places, 
but irregular and becoming obsoleti' on the body whorl. The columella is 
twisted, white, and retlectcd leaving an umbilical chink. The length of the 
type is 27 mm., the breadth 1.5 mm., length of si)ire 13 mm. 
Bothriembryon max-wePi Kobelt 1901. 
Plate 1 1., fig. 31. 
1901 — “Bothriembrgon” ma.ni-elli Kobelt. Sy.st. Conch, Cab. ( Hart. & 
Chemn.), ed. Kuster, Bd. 1., Abth. XIII., Theil 2, heft CLXVIII., 
lief 467, )). 781, pi. 112, figs. 4, 5, 17, sheet dated 28 YII. 1901, ex 
Brazier M.S. No definite localitv = “Doubtful Island King 
George’s Sound, W.A.” 
