central arras driiM-ly lirat- and t ran.-vi-r-rl y siilraH-d; tli.- lateral 

 area- elevated, radially lirate, tin- line jmst ulose. 



(iirdle moderate, nlivaeemi-, L-sct with minute scales. 



Leii-th H>. luva.lth I'll mill. < If. .!</. <t Any.) 



Rcij>i<l J<ii/, \ An.-fi'iilin (Angaa); Camp ('<><-,, /',-/ ./<"/. vo>,, N. 

 S. I !",//,.> llra/ier). In deep water. 



Lorica angati II. AD. <fe ANG., I*. 7. S. 1864, p. 193. ANOAS, 

 1865, p. is; ; 1S71, p. 97.Aulr,,rJn't<,,, angasi CI-K., .)/>. 



I have not seen this species, which is here figured for the first 

 time, from drawings made by Emerton for Carpenter, who writes as 

 follows : 



" Anterior valve large ; posterior valve small, the mucro terminal, 

 much elevated, prominent ; diagonal ridges elevated ; dorsal ridge 

 acute. Interior : posterior valve a little sinuated behind, the sinus 

 wide; having two callous, subobsolete, slightly roughened ribs in place 

 of the insertion-plates. Anterior valve with 10, central valves 1 

 slit ; teeth acute, serrated outside and at the edge ; eaves prominent, 

 deeply grooved ; sinus narrow, deep ; the sutural plates separated, 

 but having a lamina between them which is sometimes bilobate or 

 denticulate. Girdle reduced one-half in width behind, and sinuated, 

 very closely beset with solid minute scales, seen under a lens to be 

 obsoletely bilobate. 



Length 32, breadth 22J mill, ; divergence 110. 



" One of Mr. Cuming's specimens is much broader and somewhat 

 tripartite. This species differs from the typical Lorica in the anterior 

 projection of the girdle ; in the minute raised scales, which under the 

 microscope look like grains of wheat set on end ; in the sinus having 

 a separate lamina, somewhat lobed ; in the absence of anterior * false 

 apex ' on the valves ; and finally in the mucro being terminal and 

 but slightly waved, with a correspondingly slight wave in the girdle 

 behind." 



The " hairs " shown on the girdle in fig. 9 are foreign to it. 



Genus XIX. LIOLOPHURA Pilsbry, 1893. 



Liolophura PILS., The Nautilus vi, j>. 105 (January, 1893). 

 Acanthopleura sp., of authors. 



Valves exposed, dull and somewhat roughened, irenerally erodrd 

 outside, with minute eyes irregularly scattered over the lateral i 

 the head-valve and the sides of the central areas. Interior dark 



