414 Annals of the South African Museum. 



rods are very slender, more or less curved, but often nearly straight, 

 with the ends more or less forked or branched; sometimes these 

 branches unite and thus give rise to apparent perforations in the 

 ends of the plates. Lampert evidently thought these slender rods 

 were the supporting rods of the pedicels. While it is true that they 

 occur abundantly in the walls of the pedicels, they also form a 

 close, but not dense, layer all over the body surface. Beneath them, 

 in the deeper layers of the skin are the other sort of rods, the so- 

 called "spectacles" or "eye-glasses." They are very much stouter 

 rods which usually have a single large perforation at each end; the 

 rod is often nearly straight but when short and sufficiently curved 

 the remeniblance to eye-glasses is obvious. Many of these rods 

 however are simply notched more or less deeply at the end and 

 not perforated; probably such rods are but growth stages of the 

 "eye-glasses". 



The specimens of frauenfeldi in the present collection are of 

 moderate or small size, the largest about 65 mm. long. The largest 

 specimens are uniformly black but some of the smaller ones are 

 light brown or brown. The body wall is relatively thin, not nearly 

 so thick and firm as in the specimen from Angra Pequena. It 

 seems to me quite probable that the Cucumaria from Java, which 

 is in the Vienna Museum and which must be considered the type 

 of frauenfeldi, is not identical with the South African form but 

 until a critical comparison can be made, the two must remain under 

 the same name. 



P.F. 918. 1 mile east of Cove Rock, East London. Low tide. 

 2 specimens; adult. 



Cape Colony: False Bay. 5 specimens; adult. 



Cape Colony: Knysna, low tide. 11, III, '97, R. M. Lightfoot. 

 1 specimen; young. 



* CUCUMARIA IMPROVISA. 



Ludwig, 1875. Arb. Zool.-Zoot. Inst. Wiirzburg, vol. 2, p. 85; 



pi. VI, fig. 10. 



The type locality for this species is Algoa Bay. So far. as I know 

 it has not been met with since its description. Theel thinks it 

 probable that it is identical with the European C. elonqaia but 

 whether that is so or not, it is evidently quite distinct from any 

 of the other South African Cucumttrin*. 



