98 JOURNAL OF CONCHOLOGY, VOL. 9, NO. 4, OCTOBER, 1898. 



Dr. Paul Fischer 1 enumerates 81 species as inhabitants of the 

 " Province magellanique," and to Woodward's list of Falkland shells 

 he adds — Euthria antarctica, Trochus tce/iiatus, Fissurella picta, 

 Puncturella conica, P. falklandica and Modiolarca pusilla. 



The 'Challenger' expedition collected 18 species at the Falklands. 

 Of these, Calyptrcea pikus, Photinula azrulescens, Trophon liratus, 

 and possibly two unidentified species of Calyptrcea and Lamellaria 

 included in the list, are not represented in the Cobb collection. The 

 'Challenger' specimens were mostly obtained from the "kelp" in 

 from 5 to 12 fathoms. Miss Cobb's shells were all collected on the 

 beach, but in the majority of cases are in very good condition, and 

 show but slight signs of sea-wear. To several of the shells of Mytilus 

 and Patella some most beautiful specimens of Microporella ciliata, 

 Cribrilina labiosa, C. monoceros, Mucronella tricuspis, Cellepora tiara, 

 C. punctulata and other Bryozoa are attached. We are indebted for 

 these identifications to Miss E. M. Pratt, by whom they have been 

 carefully studied, in connection with another collection of zoological 

 specimens received by the Museum from Mrs Blake, of Hill Cove, 

 Falklands. 2 Included in Mrs. Blake's collection are also a number of 

 specimens of Trophon muriciformis, Euthria fuscata, Photi?iula 

 violacea and Fissurella mexicana, with the animals preserved in spirit, 

 together with several Brachiopods, of which two species, viz. : — 

 Terebratella magellanica and T. dorsata, likewise occur in the Cobb 

 collection. 



LIST OF SPECIES. 



Siphonaria lessoni Blainv. — Several typical examples. Recorded 

 also from Chili (Paetel). 

 Lachesis euthrioides sp. n. (PL I., fig. 9). 



L. testa fusiformi, lenui, Icete casta neo-brunnea, anfractibus septem, 

 quorum duobus albatis, apicalibus, ceteris apud suturas impressis, 

 tumidulis, longitudinaliter crassicostulatis, costis ad juncturas costu- 

 larum spiralium nodulosis, nodulis hevibus, nitidissimis ; apertura ar do- 

 rotunda, labro convexo, tenui, canali brevi, curta, margine columellari 

 paullum excavato. Long. 8, lat. 3 mm. 



Fusoid superficially, this little cancellated shell is undoubtedly a 

 Lachesis. It is of a bright chestnut brown, somewhat shining, fusi- 

 form, seven-whorled, two whorls apical and white, the rest impressed 

 at the sutures, tumid, longitudinally thickly costate, and transversely 

 filo-costulate, shining, noduled at the points of junction. The aper- 

 ture is ovate-rotund, outer lip thin, canal short, columellar margin 

 slightly excavate. Three specimens. 



1 Manuel de Conchyliologie, 1887, p. 172. 



2 For list of these forms with notes, see Manchester Memoirs-, vol. 42, 1898. 



