Arachnid'/. 679 



The first mention in literature of the British Museum collec- 

 tion of Limulus was apparently made by Leach in L819, when in 

 the "Diet. Sci. Nat.," vol. xiv., he described a species L. triden- 

 taius, from an unlocalised specimen in the British Museum. In 

 1847, in the list of " Specimens of Crustacea in the collection of 

 the British Museum," published by the Trustees, A. lam White 

 compiled a complete synonymical hand-list of the known speciee 

 all of which were then represented in the Museum. 



Chronological List of the Principal Accessions. 



1826. 



Leach's collection contained, according to the old register, 

 three specimens from North America, one of which was the type 

 of L. sowerbii, Leach; also a specimen from Florida, sent to Dr. 

 Leach by Thos. Say, as the type of Limulus australis, Say : and 

 an unlocalised specimen named in the old register Limulus 

 latreillei, Leach. The types of L. australis and L. latreiUei are 

 not now traceable; that of L. sowerbii is still in the Museum 

 cabinets. The type of L. macleaii, which Leach in 181 9 declared 

 to be in his collection, is also untraceable, and there i 

 mention in the old MS. catalogues of 1846 and earlier, nor in 

 the published catalogue of 1847, of the type of L. tridentatus, 

 which Leach himself declared to be in the Museum in 1819. 



1835. 



The Hardwicke Bequest contained three specimen- in spirit, 

 and one dried specimen of Limulus rotundicauda, ticketed |: 

 and the East Indies. 



1844-1846. 



In 1844, two specimens of L. tridentatu* from Japan were 

 received from the Leyden Museum, and in 1846 three specimens 

 of Limulus rotundicauda from the East Indies, presented by 

 Edward Blyth, Esq.; two specimens of L. moluccamt from 

 Singapore, presented by the Earl of Derby, and one from I 

 Straits presented by J. B. Jukes, Esq. 



