1901.1 



OF THE GEXUS BI-^HAMIV. 



203 





B. itiolensis. 



B. eoerulea. 



B. moorei 





B. johnstoni. 



Prostomium 



Troepivheil 



Epicheilous. 



Epicheilous. 





Proepicheilous. 



Anterior segments . 

 Dorsal jj^rif 



Triannulate. 





Biannulate. 





Biannulate. 





xii. .ciii. 



i'./vi. 





v. 01. 



Clitellum 



xiv.—xxii. 



(?) 



xiii.-xxiii. 





xii.-xxiii. 



Seminal gutter ... 



Straight. 



( 'onvex inwards. 



Convex inwa 



rds. 



Convex inwards. 



Gizzards 



(?) 



'■Hi. 4- ix. (?). 



'■/., cii. 





'■//., via. 



CcUciferous <//c//ids. 



.re. smallest. 



lallest. 



xv. smallest. 





xvi. S7W(llcst. 



Spermathecte 



Nc • xtern. div. 



Xo extern, div. 



Extern, div. 





Extern, div. 



Venial sctce 



Suddenly 



diminish into 

 slightly curved 

 hook. 



Suddenly 

 diminish into 



slighfh/ curved 

 hook. 



Gradually 



diminish into 

 slightly em-red 

 hook. 



Sudden/// 



diminish into 

 very curved 

 hook. 





From the above account of its structure I can abstract the 

 following definition of the species which, I may remark, contains 

 certain statements not described in any further detail in the 

 foregoing. 



Benhamia johnstoni, n. sp. 



Length about 2o^ mm. ; diameter L5-20 mm. Prostomium raili&r 

 largi . n traded within mouth-cavity, not prolonged over buccal segnu nt, 

 but with slight median projection. Dorsal pores commence v./vi. 

 Clitellum xi,-xxiii. Male pores on deep depression; seminal gutter 

 slightly convex inwards. Integument surrounding male pores 

 markedly tesselate. Gizzards in vii., viii.j calciferous glands xv., 

 xvi., xvii., opening separately into oesophagus; middle pair the 

 smallest. No septa very thick. Dorsal vessel single; last hearts in 

 xii. Spermiducal glands lie in two masses in two segments each. 

 Penial seta, om to each gland, slightly swollen before strongly hooked 

 Up, which is bifid at extremity, marked throughout with fine rings. 

 Spermatheca with strong muscular duct longer than pouch, into the 

 duct opens a rosetU of five or six diverticula. 



Hob. BtuWi nzori, 6500 ft. 



(3) Benhamia mollis, n. sp. 



In the above table of the specific distinctions between the species 

 B. johnstoni, II. moorei, B. itiolensis, and B. cosrulea, I have nol in- 

 cluded the characters of a second species of Benhamia placed in 

 my hands bj Mr. Moore. This worm is of a very dark brown 

 colour and is very Boft. I naturally pat down this softening to 

 inferior preservation ; but Mr. Moore informs me that the living 

 worm was exceeding soft and thai the specimen which I have ex- 

 amined is in reality as well preserved as is the type of B, moorei. 

 I have u"! compared it- characters in a tabular corm with those 



