50 ON AUSTRALIAN LETTCOSIIDJE, 



Genus II. — Myra, Leach. 



Sp. 1. Myra carinata, Bell (I. c, p. 297, pi. 32, fig. 3). "Testa 

 ovata, minute granulata, carinata, spina postica media lateralibus 

 ter quaterve longiore, lateralibus conicis, acutis." 



A specimen from Cape Grenville in the Ohevert collection seems 

 to be referable to this species. Tlie abdomen (male) is broadly 

 lanceolate, with its borders slightly concave." 1 



Sp. 2. Myra mammillaris, Bell, (I. c, p. 298, pi. 32, fig. 5). 

 " Testa ovata glabra, tuberculis parvis elevatis sparsim instructa; 

 dentibus posticis bevissimis, rotundatis." 



Hal). Shores of Australia. (Brit. Mus.) 



Sp. 3. Myra affinis, Bell, (I. c, p. 296, pi. 32, fig. 2). " Testa 

 ovato-globosa, spinis posticis brevibus, sub£equalibus ; pedibus 

 anticis thorace vix bis longioribus ; manu digitis tertia parte 

 longiore." 



I have some little hesitation in refering to this species a 

 specimen (young) from Cape Grenville, and another from New 

 South Wales, as both have an indistinct carina, and differ from 

 Bell's figure in various minor points ; but they seein to be more 

 nearly allied to this than to any of the other species of the genus, 

 and may meanwhile be placed here till adult specimens are 

 procured. 



Sp. 4. Myra australis, sp. nov. (Plate 5, fig. 3). Testa ovata, 

 granulata, carinata ; spina media postica acuta, reflexa, lateralibus 

 vix longiore ; regionibus hepaticis valde convexis. 



Carapace ovoid, strongly convex, granulated, with a slight 

 keel, and provided on each hepatic region with a prominent 

 mammiform elevation ; intestinal region dilated, crowned with a 



* Fig. 3. a. of pi. 32. in Bell's Monograph is evidently the abdomen of an 

 immature female, not that of a male, as stated in the " Explanation 

 of the Plates." 



