l'Y-\(M.oMi.\ 41 



LKIONYIIPHON ORANDK. 



(Plate VI., fig. I.) 



f, Pfeffer (24), p. 48. 

 AmmotAtn rkarroti, Bouvier (2), p. 295. 



Specific character! : 



Body robust, with throe prominent tmnxvi-nv ridge* donwlly ami ventrally. 

 Probofcu cylindrical, very little longer than tin; body. 



1'nlp U-jointed, the tat joint a little longer than any of the four preceding one*. 

 OvigT lo-joiniwl, without a terminal claw, the lant four jointa with nimple curved spino, which 

 increaae in K to the extremity of the laxt joint. 



Tin- body is stout, and with the alMloiuen, scarcely as lung as the prolnjscis, 

 l>eing just less than 15ium. Its width across the ncfond pair of lateral processes in 

 10mm. Its segmentation is complete, hut concealed ly a very strongly developed 

 p\ i.miidiil ridge which lies along the posterior margin of the three anterior segments, 

 and the apex of which is raised considerably above the body level. These ridges have 

 I \-ry slight curvature forwards, which is most marked in the first. The lateral 



sees arc not widely separated, the two anterior pairs are directed forwards, the 

 tir-t more than the other, and arc quite close together ; the third pair is directed 

 liackwards slightly with a wider interval between it and the preceding ]>air ; the last 

 pair is directed backwards at such an angle as to make the interval between the third 

 and fourth pair very conspicuous. All have a swelling at the distal extremity, and 

 tin- swelling gives the process an angular appearance. 



Tin- Cephalon is short, expanded anteriorly, and at the base of the chelifori presents 

 tin- same angular appearance as the lateral processes. A slight median groove divides- 

 its anterior margin. 



The Ocular tubercle lies in the middle ; it is stout, with a very slight curvature, 

 rounded at the apex, and bearing four well-developed eyes. 



The Abdomen rises from the extremity of the trunk, but without trace of 

 segmentation ; it is rather stout, slightly curved, and directed upwards. There is a 

 median tubercle between the posterior transverse ridge and the abdomen. Dorsally 

 the entire body is rendered scabrous by the presence of small spinous setw ; between 

 the liody ridges however they are scarce. Ventrally the three transverse ridges of the 

 dorsum are represented by three similar ridges, thinner and not produced to such a 

 conspicuous point ; all are directed backwards to a varying degree, the first more so 

 than the others. These ridges an continued on to the base of the lateral processes, 

 which here do not present any trace of the angular enlargements so conspicuous 

 dorsally. The spinous sette of the dorsum are not present 



The Proboscis is stout and cylindrical, only a trifle l.iiiyer than the body and 

 aUlomcn together. it is articulated to tin- Ixnly, and movable through a very 

 considerable angle. The mouth is large and triangular. The distal extremity of the 

 organ is deeply pigmented ; for nearly three-quarter^ ..f its length it displays six 



R 2 



