
444 RECORDS OF THE S.A. MUSEUM 
SUMMARY. 
Australian Diastylids belonging to Gynodiastylis and related genera are dealt 
with. These are distinguished by the facts that while the third maxilliped of the 
female lacks an exopod the male has no pleopods, The telson is variable, usually 
with post-anal part short and sometimes unarmed or almost so; it exhibits sexual 
difference in two of the genera. 
The genera represented are Sheardw gen. nov., Gynodiastylis Calman, 
Dicoides gen. nov., Allodiastylis Hale and Zimmeriana gen, nov, 
Species described as new are Sheardia antennata; Gynodiastylis rochforda, 
G. lata, G. robusta, G, dilatata, G strumosa, G. ampla, G, subtilis, G. carinirostris, 
G., polita, G. ambigua, G. attenuata, G, echinata, G roscida. G. mutabilis, G. ornata, 
G. margarita, G. quadricristata, G, brevipes and G, concava; Dicoides areolata 
and D, fletti; Allodiastylis hirtipes, A, johnstont and A, tenutpes; Zimmeriana: 
lengirostris. 
REFERENCES CITED. 
Calman, W. T. (1911); ‘*On New or Rare Crustacea of the Order Cumacea from the Collestion 
of the Copenhagen Museum, Part ii, The Families Nannastacidae and Diastylidae.’’ 
Trane. Zool. Soo. xviii, pp. 841-398, pl. xxxii—mucyii, 
Calman, W. T, (1912): ‘*The Crustacea of the Order Cumacea in the Collection of the United 
States National Musoum.’? Pro. U.S, Nat. Mus., xli, pp, 603-676, fig. 1-112. 
B ale, Herhert M. (1928): ‘* Australian Cumacea.’? Trans, Roy, Soc., 8. Austt., li, pp. 31-48, 
g- 1-17. 
Hale, Herbert M, (1936): ‘'Cumacea from a South Australian Reef’? Kec, §, Austr, Muse., 
¥, pp. 404-438, fig. 1-23, 
Hale, Herbert M, (1937); ‘*Further Notes on the Cumacea. of South Australian Reefs.’’ 
Rec, S, Austr. Mus. vi, pp. 61-74, fig. 1-9. 
Hale, Herbert M. (1937): ‘‘ Further Notes on the Cumacea of South Australian Reefs,'’ Reo, 
8. Austr, Mus., vi, pp. 61-74, fig. 1-9. 
Hale, Herbert M. (1944): *'The Genus Cyclaspis.’’ Ree. &. Austr. Mus, viii, pp. 63-142, 
fig. 1-60. 
Hale, Herbert M. (1944a); ‘*The Mamily Bodotriidse.’?’ Trans. Roy, Soc., S. Austr, xiti, 
pp. 225-285, fig. 1-38, 
Hale, Herbert M. (1945): °*The Family Diastylidac, Part I.’? Trans, Roy, Soc, &. Austr, 
Ixix, pp. 173-211, fig, 1-26, 
Kemp, Stanley (1916): ‘‘ Fauna of the Chilka Lake, Cumacea.’’? Mem. Ind, Mus., v, pp. 395-402, 
fi 
, 1-5, 
Stebbing, T, R, BR. (1910) : ' Sympoda’? (in Part V or 8.A, Crustacea for the Marine Investiga- 
tions in South Afriea), Ann. 8. Afr, Mus,, vi, pp. 409-418, pl. xliv-xlvii. 
Stebbing, T, RB. R. (1912); '' The Sympoda’’ (Part Vi of S.A. Crustacea for the Marine investiga- 
tions in South Africa). Ann. 8. Afr. Mus., x, pp. 129-176, pl. i-xvi. 
Stebbing, T, R. R. (1913): Cumacea (Sympoda). Das Tierreich, Lief. xzxix, pp. 1-210, fig. 
1-137. 
Zimmer, Carl (1914): Fauna Sildweat Aust., v, Cumacea, pp. 175-195, fig. 1-18. 
Zimmer, Carl (1936): ‘‘ California Crustacea of the Order Cumacea,’’ Proo. U.S. Nat. Mus., 
Ixxxili, No. 2992, pp. 423-439, fig, 34-39. 
