408 Annals of the South African Museum. 



ALIMA BIDENS, Glaus. 

 1871. Alima bidens, Glaus, Abhandl. k. Gesellsch. Wiss. Gottingen, 



vol. xvi., p. 152, pi. 8, fig. 34. 

 1886. A. b., Brooks, Challenger Stomatopoda, Eeports, vol. xvi., 



p. 91, pi. 9, figs. 1, 2. 

 From the Cape of Good Hope. 



GEN. EEICHTHUS, Latreille. 



1817. ErichtJms, Latreille, Le Eegne Animal, vol. iii., p. 43. 



1837. E., Milne-Edwards, Hist. Nat. Crust., vol. ii., p. 499. 



1910. E., Giesbrecht, P. und Fl. Golfes von Neapel, vol. xxxiii., 



pp. 122, 148. 



To distinguish Erichthus larvae from the preceding Alima 

 group, Giesbrecht states that they have only 1 spine between 

 the second lateral spine and the spine of the hinder angle. It 

 may be observed that examples of both these groups were 

 obtained by Dr. Gilchrist in the Pieter Faure, but the 

 discussion of the Alima-iorrns must be deferred. The genus 

 Erichthus has been subdivided, so that for the larvae of 

 Lysiosqiiilla Brooks uses the term Lysioerichthus, which 

 Hansen has modified, conveniently but perhaps not 

 legitimately, into Lysierichthus. 



' LYSIEKICHTHUS DUVAUCELLII (Guerin). 



1836 ? Erichtus duvaucellii, Guerin, Iconographie du Eegne Animal, 

 pi. 24, figs. 3, 3. In Texte Descriptif, p. 19 (1843) 

 Erichthus duvauce Hi. 

 1895. Lysierichthus duvaucellii, Hansen, Stomatopoden Plankton- 



Exp., p. 74. 



From lat. 32 30' S., long. 15 E. Hansen explains that 

 this is the larva of Lysiosqiiilla maculata (Fabricius). 

 1910. L. (I, Stebbing, S.A. Crustacea, pt. 5. 



No. 110, sent by Dr. Gilchrist, from about 549 mm. depth, 

 Table Mountain E. by S., distant 40 miles. The specimen 

 agrees completely with Guerin's figure, except that the broad 

 space between the hind corner teeth of the telson has no 

 median indent and is quite unarmed. 



LYSIERICHTHUS TKIANGULARIS (Milne-Edwards). 



1837. Erichthus triangularis, Milne-Edwards, Hist. Nat. Crust., 

 vol. ii., p. 502. 



