54 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 73 



Poche (1907a, Aug. 20, 106) in discussing Holothitrja 1758, and 

 applying the principle of elimination, cites the transfer of physalis 

 to PJiyssophora in 1789, and of denudata to Salpa by Modeer" 1790, 

 201 or 202, but does not mention Thalia ly^^i and Thalis 1798 and 

 1801, and he states that either tJialia or caudata should be taken as 

 the type of Holothuria 1758. 



Ihle (1911a, 585-586), in a discussion of the nomenclature of 

 Holothuria, states that Traustedt (1885, 353) ^^^^ Seeliger (1893, 

 2T,) consider H. thalia [type of Thalia 1791] and H. caudata as syno- 

 nyms of Cyclosalpa pinnata, but that he (Ihle) considers that the 

 identification of H. thalia with C. pinnata is only a conjecture (" ein 

 Vermuten "), and that it is clear that Browne had observed " Salpen " 

 although that the descriptions and figures of Browne are too meagre 

 (diirftig) to permit of an identification of the two species. Ihle 

 claims that even if the identity of C. pinnata with H. thalia be ad- 

 mitted, Holothuria cannot replace Cyclosalpa, since Linnaeus (1767a) 

 had added further species to Holothuria and the type of Holothuria 

 should be sought among those still remaining in the genus. 



Poche (1912a, Apr. 23, 410-411) in replying to Ihle (1911a, 585- 

 586) points out the latter's error [under the Rules] in connection 

 with Linnaeus, 1767a, and designates H. thalia as type of Holothuria, 

 1758. This designation is, however, antedated by Gill's (1907) 

 designation of physalis. 



Schulze (1912a, 27) advises the use of Salpa 1775 for the species 

 of Thalia 1756. 



Ihle (1912a, May, p. 15) gives Thalia Browne, 1756 (see also 

 1789), and Holothuria Linn., 1758 (part), as doubtful synonyms of 

 Cyclosalpa, and (p. 17) he cites H. thalia + H. caudata + H. denudata 

 Linn., 1758, as doubtful synonyms of Cyclosalpa pinnata (1775). 



Group C. Sea Cucumbers. Holothuria Authors [not Linn., 1758] 



It was seen above that Linnaeus (1767a) added four species of 

 Sea Cucumbers to Holothuria; namely, frondosa, phantapus, trcmula, 

 and pcntactes. 



Authors who took the 12th edition of Linnaeus (1767a) as start- 

 ing point for their nomenclature should have confined the genotype to 

 one of these species in case they desired to restrict Holothuria to the 

 Sea Cucumbers. 



"Modeer, 1790b, 201, placed denudata in Phyllidoce. — CWS. Compare, also, 

 Sherborn, 1902a, 294 



