226 Olive B. Daclen : 



on itself, lying on the floor of the body cavity. In P. compncta it 

 turns to tlie I'ight. and then to the left; in P. ntramentaria it 

 only l)ends slightly to the. left l)efoix' dipjiing into the cavity 

 ))ounded by the pedal muscles. 



Di-. Cox and .\\v. Hedley have placed the genus as follows: — 



<iroup, Signiurethra ; sub-groui), Agnatliouiorpha ; family, llliyti- 

 didae; genus. Paiyphanta. 



/■'. coinpacto is a new species of Cox and Hedley. but P. atramen- 

 f(iri(i was formed l)y Shuttlewortli in 1^52. One or two sjieeies 

 Iiave been suggeste<l, at different times, as l)eing most nearly re- 

 lated to P. (itr<iiii('iif(iria. dlodwin-Austen has suggested placing 

 ]'. (itf(iin('iit(iri(i and /'. spJeiifJidKht in another genus. Sutei" con- 

 .siders P. edicardi stands neai'est 1'. (itrditxnfnria . Cox and Hedley 

 consider P. conipacta nearest P. (tfr((iiif'iit(n!a, and tliere is a very 

 close resemblance; the differences have been noted in the above for 

 the animal itself, and the following are the differeiH'cs in the two 

 shells as noticed l)y Dr. Cox and Mr. Hedley : — " The novelty is 

 nearest in the genus to /''. atrnntciitdrid , but with as many whorls 

 in about half the diameter, the whoils increase more slowly, the 

 last whorl is i)roj)ortionately smaller, the perforation naii'ower, 

 and the whole shell more globose. In size it resembles the Tas- 

 manian P. fiiinosa, but the whorls of compacta are wound more 

 nearly in the same plane and increase less rapidly. It seems con- 

 fined to the southern jiart of the State, while atrainnifarid inhabits 

 the centre. ' ' 



Unfortunately, 1 have liecn unable to consult Ik-ntler's jiapi-r, 

 "Die Anatomic von P. hochstetteii, Pfi'.," Zool. Jahrb. (Anat. 

 und Ontog.) XIV., 1001, as the work was not procurable in i-ither 

 .Melbourne or Sydney. 



I wish to thank Dr. Hall, under whom this work was carried 

 on. for all his advice and help; also .Miss Haff, .M.Sc, for her assist- 

 ance in priHuring s])ecimens. 



J.lTKUATl'KK. 



JJentler — " Die Anatonde von P. hochstetteii, Pfr., Zool .lahrl). 



(Anat. und Ontog.), Xl\'., l!»()l. 

 CoUinge, \V. I']., K.Z.S., — " On tiie Anatomy of Certain Agnathous 



PulnK.nate .Mollusks," .\nn. A- .Mag. <d' Xat. Hist., Ser. 



7, \11., I!»(ll. 

 Cox, J. C., .M.D.,— A .Monograph of Australian Land Shells, lS(i8. 

 Cox. ,1. C., .M.D.. and Hedley, C., F.L.S.,— "An Index to tlie 



Land Shells of \ictoria," .Mem. Xat. .Mus. .Meli... Xo. 



4, Feb., 1!»12. 



