206 THE VICTORIAN NATURALIST. 



Sometimes the hole followed upward and then inward, above 

 the water, and in some instances travelled fully i8 inches, at the 

 end of which the crab would be found. Their presence was 

 usually indicated by a sharp nip on the finger, to which they 

 generally adhered, and in this manner were drawn out of their 

 holes. During this search a very interesting capture was made, 

 in the shape of two very small, flat fresh-water crabs, measuring 

 little more than ^-inch across the carapace. These Mr. Fulton 

 identified as Hymenosoma lacustris, a species only previously 

 taken at Norfolk Island, Lake Pupuke, Auckland, N.Z., and 

 Lake Colac and Moorabool River, in Victoria. They were 

 found among fine, very short weeds on the edge of a sandy patch, 

 in perfectly fresh running water. A number of the curious 

 Mangrove Crabs, Heloicius cordi/ormis, were taken at the inlet, 

 while waiting for the tide to rise. It was a curious sight to see 

 these creatures scurrying along sideways, with their two long 

 arms extended in the air, and disappearing one after another into 

 the nearest holes. 



I am indebted to Mr. S.W. Fulton for the determination of the 

 following crustaceans : — 



Palinurus lalandi, Lanik. (Common Crayfish). 

 Cryptodromia wilsoni, Fulton and Grant. 



Young male. — It differs somewhat from the type in that the two last pairs 

 ot legs are bilaterally subequal and do not alternate, and the wrists 

 are more nodose. 

 Lomis hirta, Lamk. 



Very common on Victorian coast about low tide line. 

 Paragrapsus quadiidentatus, M. Edw. 



Common on Victorian and Tasmanian coasts between tide lines, also in 

 deeper water. 

 Paragrapsus gaimardi, M. Edw. 

 Common on Victorian coast. 

 Platyonychus bipustulaius, M. Edw. 



Large swimming crab, fairly common in Port Phillip and Western Port, 

 also New Zealand. 

 Pilumnus, sp. ? Young male, allied to P. tomentosus, M. Edw. 

 Pseudomiccippe varians, Miers. 



Fairly common m Port Phillip and Western Port. 

 Mycteris platycheles, M. Edw. 



Common on Victorian coast. 

 Helcecius cordiformis, M. Edw. 



Common on east coast of Australia in mangrove swamps. I have odd 

 specimens from Port Phillip and Western Port. 

 Paramithrax peronii, M. Edw. 

 Ibacus peronii, Leach. 

 Engffius cuniculatus ? Erich. Loc, Foster. 



This is allied to the form found at Warburton and specimens received 

 from N.E. Tasmania. In the generic definition stress is laid on the 

 length of the antenna\ In the above they reach to the cervical 

 groove, while in the Tasmanian specimens the antenna.- reach to the 

 base of the telson, and in Warburton form to the base of the second 

 joint of the pleon. 



