1891.] MR, E. A. SMITH ON NEW SPECIES OF SHELt.S. 491 



totius |- adcequans ; peristoma tenue, marginibus callo tenui 

 junctis, exteriore simplice, columellari anguste reflexo, 



Longit. 7 millim., diam. inaj. 3|^ ; apertura 3 longa, 2 lata. 



Hub. Lugunor Island, Mortlock group of the Caroline Islands, 

 also at Iris Island of the Rouk group {Brasier). 



The reddish specimens, which are well marked with wavy lines 

 and blotches of opaque white, are extremely pretty. Some speci- 

 mens are almost entirely devoid of markings, being of a uniform 

 pale horn colour, and when this painting is present it is invariably 

 less conspicuous on the lower part of the body-whorl than above. 

 The spiral striae referred to in the preceding diagnosis are very 

 feeble and only noticeable under a powerful lens. 



DoNAx BRAZiERi. (Plate XL. figs. 10, 10 a.) 

 Testa trigona, antics anguste rotundata, postice et superne angu- 

 lata, valde indequilateralis, alhida vel grisea, umbones versus 

 interdum livida vel lilacea, obsolete biradiata ; area valvarum 

 antica polita, radiatim tenuiter striata et prope angulum 

 2^osticum subacutum concentrice rugose striata, postica carina 

 circumscripta, radiatim tenuiter lirata, lirisque transversis 

 levifer jlexuosis granose cancellata ; pagina interna polita, 

 margine inferiors {interdum quoque postico) crenulato, lilaceo- 

 fusca, albida vel fuscescens, versus tnarginem pallida, radiatim 

 tenuiter substriata ; linea pallii profunde et late sinuata. 

 Longit. 13 millim., alt. 10, diam. 6. 



Sab. Rocky Point, four miles north of Richmond River, New 

 South Wales. 



Mr. Brazier observes respecting this species : — " I have never 

 found this alive on any part of the coast, and suppose it to be a 

 very deep-water species, as it is met with only after gales." 



It is remarkably triangular, and occasionally almost quite equi- 

 lateral. The posterior area of the valves is not glossy like the 

 anterior and much more strongly sculptured. This coarser sculp- 

 ture, however, just passes over the sharp angle which separates the 

 two areas. The colour is variable both externally and within ; but 

 usually it is pale, with an indication of two broad rays, one near 

 the angle and the other more towards the front. I have much 

 pleasure in associating this pretty species with the name of its 

 discoverer. 



EXPLANATION OF PLATE XL. 



Fig. 1. Conus innotahilis, p. 487. 



2. Mitromorpha brazieri, p. 487. 



3. Littorina acutispira, p. 487. 



4. Littorina infans, p. 488. 



5. Helix (Papuiiia) ac/nocheilus, p. 488, 



6. Placostyhis giippyi, p. 489. 



7. Placostyhis calus, p. 489. 



8, 8 a. Pupina brenchleyi, p. 490. 



9, 9 a. Omphalotropis carolinensis, p. 490. 

 10, 10 a, JDonax brazieri, p. 491. 



