30 rKOCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



ai'e nearly white ; in others numerous brown spiral lines cross the ribs, 

 interrupted by the interstices, as iu M. picta. There is generally 

 a brown line just above the anjjle. 



var. OKNATA, PI. Ill, Fig. lo. Spira longior ; costis maculis 



fuscis pulcherrime ornatis. A beautifully marked shell, with a lon;ner 

 spire than the type, from Yankalilla Bay ; belonging to '\\v. Adcock. 



Shells of this species have been mistaken for J/. Vincentina, Crosse, 

 and also for M. lineata, llc^eve. The type of the former is a little 

 plain brown shell, with very obscure bands of darker brown. It is 

 more sharply angular, and the ribs are thinner than in M alucinam. 

 M. lineata, Reeve (Conch. Icon., Matuielia, sp. 42) is a synonym for 

 M. riiguhsn, Philippi, a Mediterranean species, of which M. pura, 

 Keeve (sp. 63), is another synonym. There is no doubt Mr. Ang.is 

 mistook different forms of the species I now call 31. alucinans for 

 these. 



26. Mangilia insculpta, Adams and Angas, Proc. Zool. Soc. 1863, 

 p. 420, pi. xxxvii, fig. 8. The characters of this species are somewhat 

 obscure, but it is more narrowly cylindrical and high-shouldered than 

 others of the group. I have picked out a few specimens from a mixed 

 lot of Dr. Verco's St. Vincent's Gulf shells. 



27. Mangilia hexagonalis. Reeve, Proc. Zool. Soc. 1845, p. 118, 

 Conch. Icon., Pleurotoma, sp. 293. St. Vincent's Gulf. 



28. Mangilia paucimaculata, Angas, {Ghj2)hostoma) Proc. Zool. 

 Soc. 1880, p. 416, pi. xl, fig. 7. St. Vincent's Gulf. 



29. Mangilla ViNCENTiNA, Crossc, Journ. de Conch. 1865, p. 422, 

 t. xi, fig. 6. Among all the South Australian shells I have examined, 

 none are quite conformable to Crosse's type of this species. 



30. Mangilia conneotens, n.sp. PI. Ill, Fig. 14. 



Testa fusiformis, utrimque acuminata, sordide albida, spira acute 

 turrita ; anfractus 7, angulati, superne declives, infra anguliim leviter 

 convexi, spiraliter dense striati, liris spiralibus panels tenuissimis 

 cingulati ; costis longitudinalibus circiter 9, leviter obliquis. tenuibus; 

 anfractus ultimus basim versus leviter constrictus, striis obliquis 

 conspicuis ; apertura obliqiu\ ; columella rectiuscula ; labrum tenue, 

 posticc late sed vix profunde sinuatum. Long. 8, diam. 3 mm. 



llah.—^i. Vincent's Gulf. 



An almost colourless shell, tapering anteriorly, and with a sharpish, 

 turreted spire ; the body- whorl being of about the same length as the 

 spire. It is finely striated throughout, besides having thin, spiral, 

 and somewhat distant ridges, though in some specimens these ridges 

 are by no means prominent. The longitudinal ribs are narrow and 

 slightly oblique. The specimens, in which the sculpture is more 

 pronounced, seem to connect this species with Cluthurella. 



31. Mangilia inornata, n.sp. PI. Ill, Fig. 15. 



Testa fusiformis, alba ; spira acuminata, acutiuscula ; anfractus 7, 

 primi 2 leeves, se(|ueules angulati, spiraliter obscurissime lirati, 

 longitudinaliter sub-inconspicue costati, superne subconcavo-declives. 



