SCIENCE-GOSSIP. 



59 



Fig. 6. — Endodonta fusca. 



lenticularis, tenuis, striis transversis pliciformibus 

 et lineis spiralibus valde confertis sculpta, opaca, 

 fusca ; spira parum elevata. Anfr. 4, planiusculi, 

 infra medium subconcavi, lente accrescentes, 

 sutura profundiuscula discreti, acute carinati, 

 carina crenata ad suturas paullum exserta, ultimus 

 vix descendens, basi convexiusculus, circa um- 

 bilicum indistincte angulatus. Apertura modice 

 obliqua, securiformis, peristoma simplex, acutum. 

 — Diam. maj. 6, min. 5-5, alt. 275 mm." 



[Shell mode- 

 rately but openly 

 umbilicated, um- 

 bilicus equal to 

 one-quarter of the 

 diameter ; lens- 

 shaped, thin, sculp- 

 tured with transverse folded striae and very 

 close spiral lines, opaque, brown ; spire a little 

 raised ; whorls 4, flattened, sub-concave below 

 the middle, slowly increasing ; suture deeply 

 impressed, acutely keeled ; keel crenate at the 

 suture, a little exserted ; last whorl scarcely des- 

 cending ; base somewhat convex, indistinctly 

 angulated round the umbilicus ; aperture mode- 

 rately oblique, axe-shaped ; peristome simple 

 acute.] 



The specimen figured (fig. 6) is from Guam Island, 

 Marianne Islands. — Diam. maj. 6, min. 5-5, alt. 

 2-5 mm. 



Trochomorpha (Videna) boettgeri. — Des- 

 cribed by Moellendorff, op. cit., 1890, p. 201, as 

 follows : — " T. umbilicata, umbilico ^ diam. adae- 

 quante, depressa, discoidea, peracute carinata ; 

 solidiuscula, corneo-straminea, opaca, utrimque 

 brunneo-taeniata, taeniis angustis a carina remotis ; 

 spira perparum elevata, subconvexa. Anfr. 5^ 

 subplani, lente accrescentes, interdum pallidiore 



Fig. 7. — Trochomorpha boettgeri. 



discreti, striatuli, minutissime granulati, ultimus 

 non descendens, subtus distincte spiraliter striatus, 

 circa umbilicum angulatus, penultimo vix latior. 

 Apertura obliqua, irregulariter triangularis, peris- 

 toma simplex, antrorsum protractus, subdeflexus, 

 basalis bene curvatus, callosus, columellaris 

 subreflexus. — Diam. max. 19^-20, alt. 6-6^. — Hab. 

 in insulis Tablas et Romblon, leg. cl. J. Quadras." 

 [Shell umbilicated, umbilicus equal to one-fifth 

 of the diameter ; depressed discoid, very acutely 

 keeled, somewhat solid, hornish yellow, opaque 



with a brown band on both sides, separated from 

 the keel by a narrow band ; spire very little 

 raised, sub-convex ; whorls 5J, sub-plane, slowly 

 increasing, suture Oppressed, sometimes rather 

 pale, striated, minutely granulated, last whorl not 

 descending, distinctly spirally striated below, angu- 

 lated round the umbilicus, penultimate whorl 

 scarcely wider ; aperture oblique, irregularly tri- 

 angular, peristome simple, whitish, upper margin 

 short, protracted in front, sub-deflexed, basal 

 margin well curved, callous, collumellar margin 

 sub-reflexed.] 



I figure a specimen from Tablas, Philippine 

 Islands (fig. 7), received from Herr Bruno Strubell, 

 of Frankfort-on-Main. — Diam. maj. i8, min. 16 5, 

 alt. 6 mm. The shell was originally referred by 

 Hidalgo " Journal de Conchyliologie " xxxv {1887), 

 p. 94, to Trochomorpha conomphala, Pfeiffer, but as 

 stated by Mr. Pilsbry (" Manual of Conchology," ix. 

 (1S95), p. 337), the type so named, which is in the 

 British Museum, has been examined by Mr. 

 Ponsonby, and proves to be an immature Obba 

 parmula, of which, 

 therefore, the name 

 Trochomorpha conoftt- 

 phala, Pfr. is a syno- 

 nym. 



Pyramidula (Gony- 



odiscus) omalisma. 



Described by M. Paul 

 Fagot as Helix omalis- 

 ma, of Bourguignat, 



in " Bulletin de la Societe d'Histoire Naturelle 

 de Toulouse" xiii (1S79), p. 289, as follows: — 

 " Testa latissime ad summum umbilicata, depressa, 

 vix conve.xa, costis regularibus, curvatis, ele- 

 ganter ornata ; spira perdepressa ; apice parvo, 

 obtuso, obtusa vix mamillato ; anfractibus 6, sub- 

 planulatis, lente ac regularitar crescentibus, sutura 

 impressa separatis ; ultimo non majore, ad aper- 

 turam dilatato, non descendente, supra fere piano, in 

 medio carinato, infra convexo, tumido ; apertura 

 obliqua, transverse lunata ; marginibus convergen- 

 tibus ; peristomate recto, simplici, acuto. — Alt. 2, 

 diam. 6 mm. 



Espece du group des Helix rotundata, MuUer, 

 abictina, Bourguignat, etc., caracterisee par una 

 spire presque plane en dessus, a I'encontre de ses 

 congeneres. 



Au quartier de Caraman, Commune d'Avig- 

 nonet." 



[Shell widely umbilicated, depressed, scarcely 

 convex, provided with regular, curved, elegant 

 ribs ; spire much depressed ; apex small, obtuse, 

 scarcely mamillate ; whorls 6, sub-plane, slowly, 

 regularly increasing, suture impressed distinct ; 

 last whorl not larger than preceding, widened 

 at the mouth, not descending, above almost flat, 

 angular at the middle, convex, tumid below ; 

 2 



Fig. 8. — Pyramidula omalisma. 



