78 THE VOYAGE OF H.M.S. CHALLENGER. 



where Panulirus ornatus exists, as the most southern and western station, to the shores 

 of India and Japan, where Panulirus japonicus, Panulirus burgeri, and Panulirus 

 t'asciatus are found. 



Panulirus guttatus (Latreille). 



Palinurus guttatus Latr., Ann. du Mus., iii. p. 393. 



„ ,, Milne-Edwards, Hist, des Crust., t. ii. p. 297, pi. xxviii. fig. 1. 



" Antennular somite armed with two very large conical teeth sometimes preceded by 

 two rudimentary spines. Carapace very spinous ; two spines upon the median line of 

 the gastric region, near the base of the rostral horns, and on each side of these last, 

 upon the anterior border of the carapace, are two teeth nearly as large as they. Anterior 

 border of the epistoma is armed with three subequal conical teeth, separated by a series of 

 small teeth. Peduncle of the outer pair of antennae very spinous below, second pair of 

 pereiopoda a little longer than the others. Pleon smooth and presenting near the middle 

 of each somite a transverse piliferous groove, which is not interrupted upon the median 

 line in the three first somites. The lateral horns of the pleon are produced to a single 

 tooth. The colour of the animal is green with numerous circular yellow spots ; 

 penultimate joints of the pereiopoda longitudinally striped with green and yellow. 



" Length 7 to 8 inches. 



" Habitat. — Antilles." — Milne-Edwards, he. cit. 



Panulirus guttatus, var. (PI. Xa.) 



Antennular somite armed with two sharp conical teeth on the anterior border. Dorsal 

 surface smooth ; three small sharp teeth on the median line on the gastric region, and on 

 each side two large supra-orbital teeth, (called rostral horns by Milne-Edwards) sharply 

 pointed and directed forward above the base of the ophthalmopoda ; behind these are two 

 other important but not very large sharp teeth, and a row of smaller and gradually 

 decreasing teeth, sharp at the point but large at the base, is continued to the posterior 

 marginal suture of the carapace ; these are more conspicuously determinable in the 

 female than in the male. There is a large and well-developed tooth within the anterior 

 margin, corresponding to the first antennal tooth in the typical structure, and another 

 corresponding with the outer antennal tooth of the same ideal type ; these two teeth are 

 probably those that Milne-Edwards describes as being the two large teeth on the anterior 

 border. The frontal margin of what Professor MUne-Edwards calls the epistoma, but 

 which appears to be demonstrable as the first or coxal joint of the second pair of antennae, 

 is armed with three subecpial conical teeth, separated by a series of four small teeth on 

 each side of the central one. Peduncle of the outer antennae armed with short spine-like 

 teeth, more numerous on the upper surface than on the lower, which is also smoother. 

 Second pair of pereiopoda, a little longer than the others 



