NO. 8 HAIG: THE ATLANTIC GALATHEIDEA 25 



Bosc (1801-2) named Porcellana galathina on p. 233 but gave its 

 complete description on pp. 231-232 under the general discussion of 

 Porcellana. In the description he stated that the carapace was "couvert 

 de stries transverses" but in the brief diagnosis accompanying the Latin 

 name on p. 233 he said "strie longitudinalement." In the second edition 

 of the same work (1830) an almost identical account appeared, there 

 being only a few minor changes and additions; the full description was 

 on pp. 298-99 and the name and diagnosis on p. 299, where the error in 

 regard to the striations was repeated. 



Guerin (1857b) criticized Desmarest for suppressing the extensive 

 description of the species in Bosc (1801-2) when preparing the second 

 edition of Bosc's work (1830), and for substituting some erroneous 

 material "by an inconceivable inadvertence, or to avoid research," and 

 assumed that these errors were probably derived from Leach (1820). 

 Actually, as mentioned above, the second edition of Bosc was taken 

 almost word for word from the first (including the portion which 

 Guerin-Meneville stated was omitted). It appears that Guerin-Mene- 

 ville looked at only the general account in the first edition of Bosc, and 

 only the diagnosis in the second edition, before making his ill-considered 

 remarks. 



Petrolisthes amoenus (Guerin) 



Porcellana amoena Guerin, 1855, pi. 2, fig. 2 (type locality, Cuba) ; 



1857a, p. xvi ; 1857b, p. xxxix, pi. 2, fig. 2. 

 IPetrolisthes serratus Henderson, 1888, p. 107, pi. 11, figs. 2, 2a (type 

 locality, off Bahia, Brazil). Rathbun, 1900, p. 145. Moreira, 

 1901, pp. 34, 94. 

 Petrolisthes f amoenus Benedict, 1901, p. 135, pi. 3, fig. 3. 

 Petrolisthes amoenus Schmitt, 1924a, p. 74; 1924b, p. 89; 1935, p. 185; 

 1936, p. 374. Not Boone, 1932, p. 41, text-figs. 11-12. 

 Previous records. — 

 Cuba: (Guerin). Puerto Rico, Ponce: Fish Hawk (Benedict). Barba- 

 dos: Univ. Iowa Barbados- Antigua Exped. (Schmitt, 1924b), Curagao: 

 C. J. van der Horst (Schmitt, 1924a). Bonaire: P. Hummelinck 

 (Schmitt, 1936). Brazil, Maceio, Alagoas: A. W. Greeley (Rathbun) ; 

 off Bahia, 7-20 fms: Challenger (Henderson). 



Material examined. — 

 A41-39. Buccoo Reef, Tobago Island; Apr 20, 1939; shore. Id", 1?. 

 Measurements. — Male, 4.6 mm; female, 3.9 mm. 



