408 Annals of the Sontli African Museum. 



Alima bidens, Glaus. 

 1871. Alima Helens, 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. Erichthus, Latreille, Le Efegne Animal, vol. iii., p. 43. 



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



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

 pp. 122, 148. 

 To distinguish Erichthus larvae from the preceding Alima 

 group, Giesbrecht states that they have onlj^ 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-ioYm% must be deferred. The genus 

 Erichthus has been subdivided, so that for the larvae of 

 Lysiosquilla Brooks uses the term Lysioerichthus, which 

 Hansen has modified, conveniently but perhaps not 

 legitimately, into Lysierichtlms. 



" Lysierichthus duvaucellii (Gueriii). 



1836 ? Erichtus cluvaucellii, Gu6rin, Iconographie du Eegne Animal, 

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

 Erichthus cluvaucclii. 

 1895. Lysierichthus cluvaucellii, Hansen, Stomatopoden Plankton- 

 Exp., p. 74. 

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

 this is the larva of Lysiosquilla maculata (Fabricius). 

 1910. L. d., 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 Gu6rin's figure, except that the broad 

 space between the hind corner teeth of the telson has no 

 median indent and is quite unarmed. 



Lysierichthus triangularis (Milne-Edwards). 



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

 vol. ii., p. 502. 



