12 AISnvnQLATA DISCOPHOEA. 



dentibiis spars-is olfvsisqve ■wslriictae ; oesophagus pUcis xij longitudi- 

 n alibiis; sacci ventrales minimi I. nulli; venter solum j^ostiee saceis ij 

 lo ngis refrorsum directis iwaeditus; intestinwtn crassum; anus a/mplus, 

 se m,ihmaris; oculi ut Htrudinis; aperturae genitales itidem. 



(Secundum,' celeb, dam, O. Johnston Aidastoma familios Neplie- 

 lidarum aiiribucndnm. erit, quod nefas.) 



A. savguisiig'a, Bergin. Corjnis stipra, nigro-brunneum I nigro. 

 oliraceiim, subtus pallide olivaceum. Long. 70 ■)n. m,., lat. 12 m. m- 



Syn. Hirudo sanguisuga, Bergman 1757 p. 309; Lin. Syst. Nat- 

 ed. X 649 & F. Su. H 505 M 2078; & Syst. N. ed xni. p. 

 3095; Johnson 30 



Hinido Gulo, Braun I'l. 



Hinido vorax, Johnson 62. 



Aniastoma Gulo, Moquin-Tandon 313; Aulostoma Gulo, G. John- 

 ston 46 <f- ?07 (not the synonymes given by him); 



Aulostomnm Gnlo, Diesing I. 461; and Aulastomnm Gulo, Diesing. 

 W. S. B. 33 p. 499. 



Aulacostomum Gulo, Gruhe 110; Gerstfeldt 266; Aulacostonia Gulo, 

 Eessler llO. 



Aulostoma sanguisuga. Malm 180. 



Pullus: Hirudo nigra, Johnson 32 (?). 



Varietates: ol norwalis, M,-Tancl. frequentissima ; p fiili- 

 ginosa, M.-T.; -y olivacea, M.-T. tj -- M-T.? Corpus supra oli- 

 vaceum. maculis oblougis, fuscis, per series longitudinal es late- 

 rales quatuor 1. sex dispositis; subtus laetius olivaceum, puuctis 

 irregularibus nigris adspersum. 



Habit, in aquis dulcibus ubiqve sat frequens. 



Abo, Eeso, Helsiuge, Helsingfors, Saaksmaki (Gadd); S. 

 East of Karelia (J. Sahlberg); Hoglaud (Breuner); environs of 

 S:t Peters borough, iu Onega as far as to Poveuetz, in Uksh-osero 

 and other lakes around Onega, in Ladoga as far as to Sorda- 

 vala, according to Kessler. — The variety r; I have got in 

 Abo. • — Moreover the zoological museum at Helsingfors has 

 got an entirely white specimen from — ?. 



Ohs\ In the month of August 1870 I in Pargas found 

 close to the shore of a secluded bay of the sea (subsaline) a 

 fullgrown individual of this species. It was lieng contracted 

 in the mud under a thimber; no fresh-water was to be foimd 

 in the neighbourhood. 



Feplielis, Sav. Corpus depressum, antice attenuatum, obsolete an- 

 nullatum; oesophagus plicis tribus longitudinalibtos inertnibus; oculi viij 

 in serie semicirculwri transversa disjjositi, jv in primo, jv in tertio an- 

 mdo; ^^e??/* inter XXXIV— XKXV; vulva inter XXXVII — XXXVIII 

 anmdos {interdum XXXI— XXXII & XXXIV— XXXV) 



K. oc'tociilata, Bergm. Corpus supra, subtusqre convcxiusculum 

 margine acuto. cremdato, briinneum^ carneum I. griseunr, eoncolor I. 



