Crangon and Galathea. 47 



Note. — (1). Crangon Franciscorum (Stimpson). — Rostruin small and triau- 

 gulai", rounded in front ; spines of thorax nearly as in Crangon vulgaris ; hand 

 large, with an oblique palm, more nearly longitudinal than transverse, occupying 

 nearly one-third of the length of its inner side ; thumb-like process long and 

 spiniform ; caudal segment long, slender, and pointed ; smoothly rounded 

 above ; length about three inches. Californian coast. " Crust, and Echino- 

 dermata of the Pacific Shores of North America," p. 55. 



(2). Crangon propinquus (Stimpson). — C. vulgari and C. nigricaudoe valde 

 aflSnis sed abdominis segraento quarto (et interdum. tertio quoque) in adultis 

 carinato, segmentum ultimum extremitate spinulis sex armatum. A C. 

 nigrkaudd difFert pedum primi paris manu angustiore, palma magis obli- 

 qua digitoque immobili longiore. A C. affi,ni, maxillipedibus externis et 

 pedibus quintis brevioribus ut in C. vulgari. Long. 2 '5 poll. " Prope oras 

 boreales Japonicse." Prodromus descriptionis animalium evertebratorum qua3 

 in Espeditione ad Oceanum Pacificum Septentrionalem a Republica Fede- 

 rata missa, C. Ringgold et Johan. Rodgers Ducibus, observavit et descripsit 

 W. Stimpson, p. 94. Proceedings of Academy of Natural Sciences, January, 

 1860. 



(3). Crangon nigricauda (Stimpson). — Crangon vulgaris, Owen (not Fa- 

 bricius), Zool. of Beechey's Voyage ; Dana, U. S. Explor. Exped., Crust., i. 536 ; 

 differs from the common shrimp of Europe, and of Northern United States, in 

 its broader carapax, its slightly smaller and comparatively shorter hand, and 

 more pointed caudal segment, which has also a shallow longitudinal furrow 

 along the upper surface. The antepenultimate segment exhibits a rather sharp 

 ridge along the dorsal edge. " Crust, and Echinod. of Pacific Shores," p. 57. 



(4). Crangon intermedius (Stimpson), carapax Itevis nitidus, medio cari- 

 natus. Carina bispinosa, spina anterior debilis prope rostnmi sita, altera, me- 

 diana, valida; latera spinis quatuor armata, duabus in margine antico unS, va- 

 lida in superficie laterali et una minuta prope carinam. Abdomen superficie 

 marginibus que inferioribus Iseve, carina parvula, sed in segmento antepeuultimo 

 acuta, in penultimo duplicata, segmento ultimo valde elongata, minuente extre- 

 mitate fere acute. Long., i., 7 pel., Prod., 94. 



(5). Crangon Capensis (Stimpson). — C. vulgari paullo affinis, in spina 

 medianu carapacis, &c. Carapax media parce carinatus, carina dente mi- 



h2 



