44 Mr. F. Pickard-Cambridge — ^4. Revision 



Marpesia, Menge, Preuss. Spinn. p. 471 (187G). 



A. single species was originally referred to this genus — 

 31. arenicola, JMenge — and belongs to the fam. Salticidae. 

 Type, Marpesia arenicola, Menge, 1876. — Germany. 



OEdipus, Menge, Preuss. Spinn, p. 482 (1876). 



A single species was originally referred to this genus — 

 BaUus cenescens, Simon, Mon. Att. p. 628 — and belongs to 

 the family Salticidae. 



Type, CEdipus a'nescens (Simon). 



ScARTES, Menge, Preuss. Spinn. p. 494 (1877). 



A single species was originally referred to this genus — 

 S. parvuhis, Menge — which belongs to the family Salticidse. 

 Type, Scartes jjarvulus, Menge, 1877. — Germany. 



J. II. Emerton. " New Zealand Therididai," Tiaus. Conn. 

 Acad. vol. vi. (Sept. 1882). 



Tiieridula, Emerton, Trans. Conn. Acad. vi. p. 25 (1882). 



A single species was originally referred to this genus — 

 Theridion spha^nda, Hentz. 



Type, Tiieridula splicerula (Hentz), 1850. — N. America. 



Ceratinella, Emerton, Trans. Conn. Acad. vi. p. 32 (1882). 



Ten species were originally included in this genua :• — 

 (1) Erigone Emertoni, O. P.-Gambr. ; (2) E. fissiceps, O. P.- 

 (Jambr. ; (3) C.bulhosa^Yimtxion; (4) C. pygmcea^ ihmQVion ; 

 (5) E. atriccpe, O. P.-Cambr. ; (6) E. la^ta, O. P.-Cambr. ; 

 (7) E. Icetahilis, O. P.-Cambr.; (8) C. brunnea, Emerton; 

 (9j C.niinuta; (10) C. micropalpis,Yjmtxio\\. 



These alone must be taken into consideration in settling 

 the type of Ceratinella; for this is not a case of the definite 

 substitution of one name for another, as Simon suggests 

 (Ar. Fr. v. p. 595), but a new genus is founded with definite 

 tpccies quoted under it ; and Ceraticelus, proposed by Simon 

 to include the species placed by Emerton under Ceratinellay 

 which were not congeneric with Menge's Ceratina, will 

 become a synonym of tiie former. It is of the utmost im- 

 portance, in view of avoiding future complications, to keep 

 tliese points clear and distinct. So far as i can make out, no 

 t>pe had definitely been selected for Ceratinella until Simon 

 selected Theridium breve, Wid. (Hist. Nat. Ar. ii. p. 649, 

 1894). 



'iype, Ceratinella brevis (Wid.), 1834. — Europe. 



