Hyale 573 



H. hawaiensis (Dana) 1853 & 55 Allwchestes h., J. U. Dana in: U. S. expl. 

 Exp., r. 13ii p. 900; t. 61 f. 5a— h \ 189S Hyale preüostaXpart.), A. DellaValle in: F.Fl. 

 Xeapel, v. 20 p. 519. 



L. about 9 mm. 



Tropical Pacific (Hawaiian Island of Maui). 



H. helleri (Grube) ?1864 Ällorchestes imbricatus (juv.) (err., non Bäte 1857!), 

 E. Grube, Lussin, p. 72 | 1866 A. helleri, E. Grube in: Arch. Naturg., u 82i p. 384 t. 9 

 f. 3 I 1893 Hyale prevostii (part.), A. DellaValle in: F. Fl. Neapel, u 20 p. 520. 



Approximate to the larger H. nudicornis. L. 3 — 5 mm. 



Adriatic. 



H. nudicornis (Heller) 1866 iV^icea n., Cam. Heller in: Denk. Ak. Wien. t;.26ii 

 p. 8 1. 1 f. 16— 19 I 1879 Hyale n., Wrzeäniowski in: Zool. Anz., v.2 p. 202 | 1893 H. 

 prevostii (part.), A. DellaValle in: F. Fl. Neapel, u20 p. 519. 



Possibly identical with Parhyale fascigera (p. 556), but uropod 3 not described. 

 Gnathopod 1 in (5, finger stout and strong, swoUen in the middle, the point over- 

 lapping palm. 



Adriatic. 



H. Orientalis (Dana) 1853 & 55 Ällorchestes o., J. D. Dana in : U. S. expl. Exp., 

 V. 13 p. 896 ; t. 61 f. 2 a— h | 1893 Hyale prevostii (part.), A. DellaValle in: F. Fl. Neapel, 

 «;.20 p. 519. 



Antenna 1, flagellum moniliform. L. about 6 mm. 



Sooloo Sea (off the harbour of Soung). 



H. piedmontensis (Bäte) 1862 Ällorchestes p., Bäte, Cat. Amphip. Brit. Mus., 

 p. 35 t. la f. 5 I 1879 Hyale (Ä.) p., Wrzeäniowski in: Zool. Anz., v.2 p. 200 j 1893 

 H. ? p., A. Della Valle in : F. Fl. Neapel, v. 20 p. 529. 



Perhaps young of H. prevostii (p. 565). Gnathopod 1 rather larger than gnatho- 

 pod 2. L. under 4 mm. 



Coast of „Piedmont". 



H. pugettensis (Dana) 1853 & 55 Ällorchestes p., J. D. Dana in: (J. S. expl. 

 Exp., f. 13 II p. 901; t. 61 f. 6a— d | 1857 Ä. p., Stimpson in: Boston J. nat. Hist., v. 6 

 p. 518 I 1893 Hyale prevostii (part.), A. Della Valle in: F. Fl. Neapel, v. 20 p. 519. 



Puget's Sound [North West America]. 



H. rudis (Heller) 1866 Nieea r., Cam. Heller in: Denk. Ak. Wien, v.26u p. 12 

 t. 1 f. 33 I 1879 Hyale r., Wrzesniowski in : Zool. Anz., v. 2 p. 202 I 1893 H prevostii 

 (part.), A. Della VaUe in: F. Fl. Neapel, p.20 p. 520. 



Peraeopods 3 — 5, Oth Joint straight, slender, finger s'hort, with small setule on 

 inner margin. 



Adriatic (Lesina). 



H. rupicola (Hasw.) 1879 Ällorchestes r., Haswell in: P. Linn. Soc. N. S. Wales, 

 ■V. 4 p. 250 t. 8 f. 1 I 1885 Ä. r., Haswell in: P. Linn. Soc. N. S. Wales, v. 10 p. 95 t. 10 

 f. 9—12 I 1893 Hyale r., G. M. Thomson in: P. R. Soc. Tasmania, 1892 (p. 18) | 1893, 

 A. Della Valle in: F. Fl. Neapel, v. 20 p. 529. 



Very closely allied to H. perieri (p. 570). Peraeopods 1 — 5 with very conspicaous 

 setule on inner margin of finger. L. 9 mm. 



South-Pacific (Port Jackson and Botany Bay [East-Australia] ; Tasmania?). 



