Freslnvafer- Shells of the Loidsiade Arclilpdarjo. 201 



pallida circa periphcriaiu quoque ad suturara oruata ; aiifract. G, 

 vix convexiusculi, sensiin accrescentes, parum uitidi, liiiois incre- 

 menti tenuibus sculpti, ultimns acute carinatixs, anticc baud 

 descendens, inferne nitens ; umbilicus perspectivus, latus, profun- 

 dus ; apertura diagonalis, subrhombeo-luuaris; perist. simplex, 

 acutum, margine supcriore oblicjue arcuato, inferioro recedeute. 

 Diam. maj. 17, min. 15, alt. 7 millira. 



Hah. Rossel Island. 



This species approaches T. -papua and T. planorhis and 

 some other species in many respects. It may be recoi^-nized 

 by the dark chestnut-colour and the white thread-like keel 

 and suture. 



5. Helix [Ghloritts) Leei, Cox. 



Heli.r Lf'ei, Cox, Proc. Zool. Sue. Loud. 187;3, p. Q'oo, pi. xlviii. figs. 5, 

 o a ; Pfeiffer, Mon. Hel. vol. vii. p. 30->. 



Hab. St. Aiguan (B. Thomson). 



Dr. Cox does not quote any particular island for his type. 



6. Helix {Ghloritis) suhcorpulentus. (PL XIII. fig. 14.) 



Testa late et profunde umbilicata, subtenuis, globoso-depressa, 

 nitida, pallide fuscescens, apicom versus pallidior ; anfract. 5, con- 

 vexiusculi, subceleriter accrescentes, lincis incrementi obli(piis 

 tenuibus sculpti, sutura bene impressa sejuncti ; ultimas inflatus, 

 autico brevitcr oblique descendens ; apertura late lunata, parum 

 obliqua, intus margaritacoa ; perist. livido-rufescens, late cxpan- 

 sum et reflexum, raarginibus callo tcnuissimo junctis, columcllari 

 valde dilatato. 



Diam. maj. 40, min. 32, alt. 25 millim. 



Hah. Rossel Island. 



In form this species is very like H. Leei ; it is, however, 

 much larger and differently sculptured; it exhibits no trace 

 of the oblique rows of granules occurring in that species, the 

 epidermis apparently being non-pilose. 



7. Helix [Geotrochus) Ghajpiaani^ Cox. 



Helix Chapmani, Cox, Proc. Linn. Soc. N. S. Wales, 1880, vol. iv. 



p. 115, pi. xvi. fig. 2. 

 Helix (Acavus) comliolahris, Smith, Ann. & Mag. Nat. Hist. 1887, 



vol. xix. p. 419, pi. XV. fig. 4. 



Hab. Rossel Island [Gox and Thomson). 



I must plead as an excuse for describing this species that 

 it is not referred to in the ' Zoological Record ' for 1880, upon 

 which I relied for species published since the eighth volume 

 of Pfeiffer's Monogr. Ilelic. 



Ann. & Mag. N. Hist. Ser. 6. Vol. iv. 14 



