50 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



probably this species, marked 924 ; they are much faded, and were 

 obtained at a depth of 40 fms. in Bass Strait. Besides these there 

 are six individuals in the Liverpool Museum from Bass Strait, and 

 1 was enabled to obtain two examples in exchange from the same 

 locality. Two of the Liverpool shells are better preserved than 

 any others I have seen, the outer lip being- entire. One, consisting 

 of fourteen whorls, has a length of 35 mm., width 12 mm., sinus 

 in outer lip about 5-5 mm. in depth. The other shows a sinus of 

 much the same relative depth. There are also twelve specimens 

 in the Natural History Museum at Hamburg, but none of them are 

 in particularly good condition. Nine were originally in the Museum 

 Godeffroy, and all are from Bass Strait except two, of which the 

 habitat is unknown. The general character of T. runcinata, as well 

 as the form of the sinus, greatly resembles T. accisa. Only three 

 specimens of this species were dredged by the " Challenger," at 

 a depth of 38-40 fms. in sand and shells off East Moncceur Island. 

 None of them have the outer lip entire, and the sinus is only 

 indicated by the lines of growth. In the Natural History Museum, 

 Hamburg, there are five specimens which were all originally in 

 the Museum Godeffroy; two good examples, showing the sinus in the 

 outer lip, were named Murchisonia safaris in manuscript by Dunker. 

 One of these is the largest I have seen ; it consists of sixteen 

 whorls, and measures 40 mm. in length, 13'5mm. in width, while 

 the sinus is about 6 - 5 mm. in depth. Another example is remarkably 

 well preserved, having the sinus perfect; it consists of fifteen whorls 

 having a length of 36*5 mm., the greatest width being 12-5 mm., 

 while the sinus is about 5 mm. in depth. Dr. Pfeffer informs me 

 that all the shells in the Godeffroy Collection were dredged by 

 Captains Schultze, Pohl, and Witt in Bass Strait, and that the best 

 were probably obtained by the latter, but unfortunately no particulars 

 are preserved. 



T. deliciosa and T. cordismci are immature, therefore the actual 

 depth of the sinus cannot be ascertained. The former was dredged 

 at a depth of 155 fms. off Kaine Island, Torres Strait, the latter 

 off East Moncceur Island at 38-40 fms. Such minute descriptions 

 of these species are given by the Bev. E. Boog Watson that it is 

 unnecessary for me to say more about them here. Figures of T. accisa 

 and T. runcinata, however, are given (PI. V, Pigs. 4, 5, and 7) to 

 show the form of the aperture with its characteristic sinus. 



In the British Museum Natural History) there are four specimens 

 in the Cuming Collection of T. sinuata from deep-water off Sydney, 

 six from Stewart Island, and two from New Zealand. The sinus 

 is not so deep as in T. accisa and T. runcinata, but it is well marked, 

 and the general form of the aperture is similar. Seven examples 

 have the sinus well preserved, showing that it varies slightly in 

 depth and width. An average-sized specimen consists of fourteen 

 whorls, which measure 16 mm. in length, 55 mm in width, the 

 sinus being about 175 mm in depth. T. Sopliia- was dredged off 

 Tort Jackson Heads at a depth of 45 fms. and was first described 

 by the Bev. J. E. TenisonAYoods as T. incisa, but that name being 



