580 Lt. -Colonel II. II. Godwin-Austen on 



spermatopliore, perfectl}' formed. Tlie spines are all on one 

 side, closely set, braiichino-, and elongate and tapering, of 

 the type of leucospira ; the flume branches into two, one 

 brancli being whip-like. 



The radula : central andadmedian teeth as in the subfamily, 

 the outermost marginals with two or three serrations below 

 the outer upper cusp. 



Formula : 48 . 3 . 11 . 1 . 11 . P, . 48, or 62 . 1 . 62. 



Jaw much arched, with a central projection. 



liicrokerkus pondoensis, sp. n. (PI. IV. tigs. 2, 2 a ; 

 PI. XIV. tigs. 3, 3 a, animal.) 



Locality. Pondoland (No. 47). 



Shell unfortunately much injured when extracting the 

 animal ; sculpture quite regular longitudinal striation ; colour 

 yellow ochraceous, the first two whorls white as in leucospi?-a ; 

 spire flatly conoid, apex bluntly rounded ; suture impressed ; 

 whorls 4; aperture broken; peristome broken; columellar 

 margin broken. 



Size : major diam. 12'25, minor ?; alt. axis ? mm. 



The animal differs from all the species of this group I have 

 as yet seen by having no markings of any sort on the visceral 

 sac, which is milky white throughout. The lobe over the 

 mucous pore smaller than in other species; but the specimen 

 examined is very much contracted in the spirit, so conclusions 

 of this kind are not of great value, and it is to be ho[>ed 

 collectors in the future will make descriptions from the 

 animals when taken alive. 



The peripodial margin is broad and closely fringed, as it 

 were. 



Foot divided. Right shell-lobe and left shell-lobe small. 



The generative organs (PI. IV. fig. -) only diti'er from 

 those of allied species in small particulars. The shaft of the 

 penis is long, the epiphallus very long and much convoluted 

 near the accessory gland, which appears caught up in the 

 coil. The flagellum has a longish ciecum attached to it (/'). 

 This is a variation in this particular part noticed also in 

 K. biirnupi, sp. n.. No. 15 (PI. II.), connected with a 

 corresponding variation in tiie form of the attenuate end of 

 the spermatoi)hore. This bifurcation also occurs m Kerko- 

 2)horus leucospira {vide Pi. XVII. tig. la). 



" (Sent to the Cape Town Museum by Miss Pegler from 

 Kentani, near Pondoland. We have begged her to send 

 more cither live or properly drowned. The shell appears to 

 be '} llelicarion leucospira, Pir., ov j'ellicuht, For.; but leuco- 



