British Isopoda Chelifera. 327 



ISOPODA CHELIFERA. 



Fam. I. Apsendidae. 

 Genus 1. Apseudes, Leach. 



1. Apseudes talpa (Montagu). 



1866. Apseufles talpa, Bate & Westwood, (1 ) vol. ii, p. 148. 

 1880. Apseudes talpa, G. O. Sars, (101) p. 10. 

 1886. Apseudes talpa, Norman & Stebbiug, (86) p. 81, 

 1886. Apseudes talpa, G. 0. Sars, (103) p. 267, pis. i., ii. 



Hob. Guernsey, and among stones, the Fleet, Weynioutli 

 {A. M. N.). Tidemark, Jersey {Sinel c& Hornel\ 135). 

 Among roots of Laminaria saccharina in 7 fath., near the 

 Tan Buoy, Cumbrae, N.B. {D. Robertson, 91). Montagu's 

 specimen was taken at Salcombe ; and Barlee procured it at 

 I'lymouth. 



Distrih. Off Capri, Bay of Naples {A. M. N.) ; Sardinian 

 coast {Prof. Emery) ; Adriatic {Heller as " Rhoea Latreillii^'') ; 

 Mus. Nor., Messina [G. 0. Sars). The species recorded 

 under this name by Meinert from Denmark was subsequently 

 found by him to be A. spinosus. 



2. Apseudes Latreillii (Milne-Edwards). 



1866. Apseudes Latreillii, Bate & Westwood, (1) vol. ii. p. 153, 

 1880. Apseudes Latreillii, G. 0. Sars, (101) p. 14. 

 1886. Apseudes Latreillii, Norman & Stebbing, (80) p. 82, pi. xvi. 

 1886. Apseudes Latreillii, G. O. Sars, (103) p. 290, pi. v. 



Hah. Guernsey; Jersev; mouth of the Yealra, Devon 

 {A. M. N.). Moray Filth {T. Edward in Mus. Nor.). 

 Plymouth (Biol. Lab.: in Mus. Nor.). Salcombe, Devon 

 {Stebbing, 124). 



Distrib. Coast of France {H. Milne- Edwards) ; Naples 

 and Golelta {Q. 0. Sars). 



This is not Apseudes Latreillii, Claus ; but appears to be 

 tbe Rhcea Latreillii of Milne-Edwards, and certainly the 

 Apseudes Latreillii oi Bate and Westw., of G. O. Sars, and of 

 Norman and Stebbing. Professor Claus, in the exhaustive 

 memoirs (16 and 17) on the morpliology and physiology of 

 Apseudes, named the Adriatic species wliich he was investi- 

 gating Apseudes Latreillii, M.- Edwards. Immediately after 

 the publication of his first memoir, Mr. Stebbing and myself 

 (8G, p. 133) pointed out that Claus's species was not tliat 

 understood by A. Latreillii, and we named this new Adriatic 

 form Apiseudes hastifrons ; and Boas (5), arriving sliortly 

 after at the same conclusion, named the same Adriatic form 



