On the Crustacea of the ^Albatross'' Dredgings in 1883. 179 



Locality and Horizon. Regan's allotment, Northern railway, 

 31 miles from Townsville, North Queensland. Devonian. 



Collection. Geological Survey of North Queensland, Tovvns- 

 ville, N. Q. 



EXPLANATION OF PLATE VI. 



Fig. 1. Alveolites alveolaris, de Kon., sp. Portion of a specimen, showing 

 the elevations npon the surface. Enlarged twice. 



Fig. 1 a. Portion of another specimen, showing the mural pores. En- 

 larged about 2.1 times. 



Fig. 1 h. Transverse section of this specimen. Enlarged about 25 times. 



Fig. 1 c. Longitudinal section. Enlarged about 25 times. 



Fig. 1 d. Copied from pi. ii. tig. 4, ' Foss. Pal. Nouv. Galles du Sud,' by 

 L. G. de Koninck. 



Fig. 2. Alevolites alveolaris, var. quecnslandensis, Eth. & Foord. Trans- 

 verse section. Enlarged about 25 times. 



Fig. 2 a. Longitudinal section of the same species, showing pores. En- 

 larged about 25 times. 



Fig. 2 b. Another longitudinal section, showing the tabulee. Enlarged 

 about 25 times. 



Fig. 3. Ample.vopora Konincki, Eth. & Foord. Portion of the surface, 

 enlarged about 50 times. 



Fig. 3 a. Transverse section. Enlarged about 50 times. 



Fig. 3 b. Transverse section. Enlarged about 25 times. 



Fig. 3 c. Longitudinal section. Similarly enlarged. 



XXIII. — Crustacea of the ' Albatross ' Dredgings in 1883. 

 By Sidney I. Smith*. 



Very little has yet been published in regard to the zoological 

 results of the deep-sea explorations carried on during the 

 summer of 1883, by the United States Fish Commission, 

 although the dredgings were among the most important yet 

 made. Some of the remarkable forms of fishes discovered 

 have been described by Drs. Gill and Ryder, but the writer's 

 report on the Decapod Crustacea (eighty pages of text with 

 ten plates), recently put in type for the Fish Commission 

 Report for 1882, is the first detailed report on the zoological 

 collection made by the ' Albatross,' and affords an opportu- 

 nity for a brief review of the results of the study of the higher 

 Crustacea, which is here published by permission of the Com- 

 missioner of Fish and Fisheries. 



The dredgings of the ' Albatross ' extended from off Cape 

 Hatteras to the region of George's Banks, The number of 

 dredging-stations was 116, of which 30 were in less than 100 

 fathoms, 35 between 100 and 500 fathoms, 19 between 500 



* From the 'American Journal of Science,' July 1884, pp. 53-56. 



