GASTROPODA (rHIPIDOGLOSSA) . Moll. 53 
and cegleis (Watson) = T. vaillanti (Fischer), Atlantic ; Jeffreys, P. Z. S. 
1883, pp. 95-98, the new species pi. xx. figs. 1-4. 
Thar sis , g. n. Shell globular, solid and glossy ; peristome circular and 
continuous, attached to the pillar ; base closed by a pad or thick testa- 
ceous layer in the adult, perforated in the young ; operculum horny, 
multispiral. T. romettensis (Seguenza, as Oxystele ), Mediterranean and 
Atlantic. Jeffreys, P. Z. S. 1883, p. 93, pi. xix. fig. 7. [Name preoccu- 
pied by Giebel, 1847, for a fossil Ganoid. — Rec.] 
Ganesa, g. n. Shell shaped like a Natica , thin ; peristome continuous, 
free and separate in the young, but united to the periphery in the adult ; 
spire having an oblique axis ; base perforated, not umbilicate ; opercu- 
lum horny, multispiral. G. pruinosa, Atlantic, and nilidiuscula, between 
the Hebrides and Faroes, 570 fath., spp. nn., Jeffreys, l. c. p. 94, pi. xix. 
figs. 8 & 9. 
Circulus (Jeffreys, 1865, as a subgenus). Shell forming a circular com- 
pressed disk, slightly nacreous; mouth quadrangular, with a discontinuous 
peristome ; umbilicus very wide ; operculum multispiral. C. striatus = 
Valvata striata (Philippi) = Solarium philippii (Cantraine) = Delphinula 
duminii (Requien), Atlantic and Mediterranean ; Jeffreys, l. c. pp. 94 
& 95. 
Haliotid.®. 
Scissurella umhilicata, sp. n., Jeffreys, P. Z. S. 1883, p. 88, pi. xix. fig. 1, 
Atlantic. 
Haliotis. H. C. Weinkauff gives a monograph of this genus, de- 
scribing and figuring 72 species; many of them are only copied from 
Reeve or Sowerby ; the figures are generally rather bad. If. strigata , 
new name for striata (Gmel .,nec Lin.) = rugosa (Reeve, nec Lam.), lo- 
cality unknown, p. 20 ; exigua (Dkr., not before described), p. 29, pi. xiii. 
figs. 2 & 3, Fiji and Samoa Islands ; subvirginea , new name for virginea 
(Dunk. & Sow., nec Chemn.), and gibba (Reeve, nec Philippi), Lower 
Guinea, p. 33, pis. xiii. figs. 7 & 8, & xvii. figs. 1 & 2 ; H. maculata 
(Kiister, 1840) = coccinea (Reeve, 1846), p. 83. Kiister’s Conch. Cab. pts. 
322, 324, 326 & 327, 88 pp., pis. vii.-xxx. 
Haliotis iris (Martyn). Animal and dentition ; Hutton, Tr. N. Z. 
Inst. xv. p. 127, pi. xv. fig. h. 
FlSSURELLID^]. 
Zeidora naufraga, sp. n., Watson, J. L. S. xvii. p. 27, off St. Thomas, 
W. India, 390 fath. The author suggests that this genus may belong to • 
the Opisthobranchia } and that Crepiemarg inula (Segue&za) is identical 
with it. 
Parmophorus unguis (L.). Dentition ; Hutton, Tr. N. Z. Inst. xv. p. 127, 
pi. xv. fig. i. 
Tugalia intermedia (Reeve) = cinerea and ossea (Sow.) = australis 
(Tenison-Woods), Port Jackson, Yictoria, and Tasmania; Brazier, P. Linn. 
Soc. N. S. W. viii. p. 227. 
Puncturella agger , plecta , oxia , and sportella , spp. nn., and profundi 
