68 ART. 7. — I. JJIMA : IlEXACïIXELLIDxV, JV. 



extremes representing the smallest and the largest I have us yet 

 seen. 



To mention a few specimens in particular. The smallest 

 just referred to is the one shown in the accompanying text 

 figure 1, A (S. C. M. No. 478). It is only 42 mm. high, the 

 stalk being nearly as long as the body 2^i"0i)er. The latter is 

 18 mm. Inroad. The presence of tubercular prominences on this 

 small specimen as also on such gradationally larger ones as mea- 

 sure 57 mm,, 73 mm., 8-") mm., etc. in height, shows that their 

 their formation takes place very early in the life of the indivi- 

 dual. 



Text-tig. 1, L\ represents a modei'ately huge specimen with 

 the typically characteristic shape of the subspecies. (From Out- 

 side Okinose, S. C. i\I. No. 482). Total height, 115 mm. 

 Greatest breadth of body, Go nun. 



PI. v., fig. 12, shows in half natural size the single speci- 

 men I have from Homba (S. C. M. No. 444). Total height, 

 lo9 mm. Greatest breadth of body, 100 nun. The irregukir 

 protul)erances of the Itody are lO-oO mm. or ir.ore in height. 

 In places the surfaces of directly adjoining protuberances have 

 come into contact and have fused together leaving an arch-like 

 passage between them. The stalk is of about the thickness of 

 one's thumb. 



Fig. lo of the same plate depicts the largest s])eciinen (S. 

 CA M. No. 445, fi-om Outside Okiuose l)y the Iwado-line) tliat 

 has come under my observation ; it is cut open lengthwise, so as 

 to shovv' the gastral surf ice and the system of excuri'ent canals 

 traversing the stalk. Total height, 210 mm. Thickness of wall, 

 7-10 nun. in the lower })art, without taking the outbulging into 

 consideration. 



