2 Ci'ust. 
X. CRUSTACEA. 
INTRODUCTION. 
The Record of Crustacean Literature for 1902 must be prefaced by an 
apology. The work of compiling it came into the hands of the present 
Recorder at a late date and it now goes to press in a state of confessed 
incompleteness. More especially on the Palaeontological side many 
important periodicals have not been seen, and it has been impossible to 
make any systematic search for papers omitted in former years. The 
Recorder hopes to remedy some of these deficiencies next year, and will be 
glad to have his attention called to any omissions. 
Among the more noteworthy contributions to Morphology during the 
year we may call attention to Milne Edwards & Bouvier’s fine monograph 
on the remarkable deep-sea Isopod Bathynomus (171) in which many facts 
are brought forward in support of Hansen’s views as to the constitution 
of the appendages in Crustacea. The memoir by the same authors on 
jDromiacea and Oxy stomata (170) has much importance in relation to the 
morphology and classification of the Brachyura. These two works are 
probably the last to bear the-name of Milne Edwards, which for two 
generations has been a leading one in carcinological literature. Other 
monographs of morphological as well as systematic interest are Bonnier’s 
great work on the Bopyridce (23) published in 1900, and Wilson on the 
Argulidce (286). Gruvel (102) gives an important account of the structure 
of the “ complemental males ” in various Cirripedes. Ekman (84) and 
Spencer (257) make contributions to our knowledge of the Phyllopoda. 
Fritsch (90) introduces the name Simplicipoda for the very interesting 
group of fossil Crustacea to which Packard long ago gave the name 
Syncarida , and gives restorations which have been criticised by Calman 
(43) and Jaekel (134). Steuer’s (267) Mytilicola adds another to the 
small number of Crustacea stated to possess a closed vascular system. 
Bohn’s (21) elaborate work on the respiratory system of Decapods may 
also be mentioned here, though its interest is chiefly physiological and 
bionomical. The systematic position of the problematical Decapod Am- 
phion is not rendered much clearer by Koeppel’s (140) paper. 
In Physiology we have Furth’s text-book (93) and other contributions 
to physiological chemistry ; Keeble & Gamble’s (139) preliminary account 
of their researches on the physiology of colour; papers by Parker (194), 
Radl (211), and Yerkes (292) on the reactions of Entomostraca to various 
stimuli, a line of research of great interest in relation to plankton work. 
In Embryology some new observations relating to Crustacea are 
embodied in the continuation of Korschelt & Heider’s (141) well-known 
text-book. Hacker’s (107 & 109) work on the history of the reproductive 
cells in Copepods is of great theoretical interest. Bigelow (16) on the 
early development of Lepas should also be mentioned. 
U nder Bionomics we have numerous papers of varying interest. 
Borradaile (26 & 27) continues his series of studies on the Crustacean 
life of Coral Islands. Samter & Heymons (225) have reinvestigated the 
influence of environment on variation in the classical case of Artemia. 
Autotomy and regeneration continue to attract much attention. The 
whole subject is lucidly dealt with in Morgan’s book (177) and Herbst 
(120 & 121) has an important investigation of the conditions which de¬ 
termine the occasional regeneration of an antenna-like organ in place of 
an eye in certain Decapods. 
Among the numerous papers on plankton work Gran’s (99) may be 
singled out as worthy of special attention. 
Subterranean Crustacea form the subject of several papers. The 
affinities of the Isopod Stenasellus remain somewhat mysterious since 
Vire’s (210) account provides it with nine thoracic somites. Hay’s (115) 
