36 COLLECTIONS FROM MELANESIA. 



3. Octopus maculosus. (Plate IV. fig. C.) 



Hoyle, Trans. Roy. Physical Soc. Edinb. L884. 



Body short, aboul as broad as long, dirty buff beneath, of a dark 

 bluish slate-colour niton the back, minutely dotted on both sides, the 

 dots being scarcely visible to the naked eye except upon the pale 

 ventral surface, smooth below and above, merely wrinkled by con- 

 traction of the skin, without granulation or cirri. Head narrower 

 than the body, a little prominent at the sides or eyes, of the same 

 colour above as the body. Siphuncle buff. Arms alternately banded 

 with dark slaty blue and buff, the former colour predominating, 

 ornamented lure and there with pale, more or less ovate rings upon 

 some of the dark bands. Dorsal pair rather shorter than the rest, 

 which are subequal, connected by a strong interbrachial membrane, 

 which joins the two ventral arms a little lower down than these and 

 the two adjoining. Cups alternating in two rows, very slightly 

 prominent, close together, buff on a slaty -blue ground, and thus con- 

 spicuous, about one hundred in number on the longest arms and a 

 few less on the dorsal pair, of the same size on all the arms, the 

 largest of them situated towards the lower part, the rest gradually 

 lessening towards the extremity. 



Length of body 22 millim., diam. 26 ; length from end of body 

 to membrane between lower pair of arms 43 millim. ; diam. of 

 head 20 ; length of longest arm from the mouth to the tip 78 

 millim. ; largest cup If wide. 



Hub. Port Jackson. 



The peculiarity of the colour of this species readily distinguishes 

 it from all others previously described. 



II. GASTROPODA. 



1. Conus lizardensis. 



Crosse, Jour a. de Conch. 1865, vol. xiii. p. 305, pi. ix. fig. : > : Sowerby 

 TJies. Con. hi. pi. 288. fig. 642. 



Hob. Lizard Island, N.E. Australia (Crosse); Arafura Sea. 

 N. Australia, 32-36 fath. (Cojvpingt r). 



The single specimen from the latter locality is about the same 

 size as the type described by M. Crosse, but differs in haying the 

 spire less elevated, although consisting of an equal number of whorls. 

 The twofold character of the spiral ridges, the strong raised lines of 

 increment, and the fine sculpture upon the top of the volutions are 

 all maintained. 



2. Conus aculeiforniis. 



Reeve, Couch. Iron. pi. 44. figs. 240 a, b : Soiverby, Thes. Conch, hi. 

 1>1. 202. fig. 370. 



Huh. Island of Mindanao, Philippines (Cuming)', Arafura Sea, 

 32-36 fath. (Coppinyer). 



