660 



ARTHBOPODA 



SUB-KINGDOM VII 



of maxillipeds, the second pair being developed into large raptorial limbs, and three pairs 

 of biramous thoracic feet. Abdomen very strongly developed, longer than the anterior part 

 of the body, and its swimming feet bear branchial tufts. 



The Stomatopods comprise a single family (Squillidae') of nine recent and still 

 fewer fossil genera, with the characteristics of the order. Living forms are inhabitants 



of tropical and temperate waters 

 of both hemispheres, and prey 

 upon other animals. The oldest 

 fossil form is Necroscylla IVilsoni, 

 Woodward, from a concretion in 

 the Coal Measures of Cossall, 

 England. It is founded upon 

 an abdominal fragment 21 mm. 

 long, showing five segments and 

 a well-preserved telson, and bears, 

 some resemblance to the abdomen 

 of Squilla. Squilla itself dates 

 back to the Upper Jura (Litho- 

 graphic Slates), and species are 

 known from the Cretaceous of 

 Lebanon, Eocene of Monte Bolca, 

 and Highgate, England. 



Sculda, Miinst. (Beckur, 

 Miinst. ; Buria, Giebel), (Fig. 

 1383). Cephalothorax orna- 

 mented with longitudinal mark- 



FIG. 1383. i n g s 5 an( i leaving the last three 



Sculda pennata, Miinst. Upper Jura ; Bavaria. A, JS, Dorsal thoracic segments exposed. Ab- 

 /!. a, e, First and second ^ omen broad, elongated, and with 

 large surfaces for the attachment 

 of swimming feet, the latter not preserved. The three hindermost abdominal limbs, 

 and the semicircular setigerous telson are developed into a caudal fin. Three species 

 occur in Lithographic Slates of Bavaria. 



Order 4. DECAPODA. Latreille. 1 



Cephalothorax completely covered by the carapace, or with but one segment free; five 

 pairs of walking feet, the first two or three pairs usually chelate. Test prolonged into 



(Palaeontogr., XV.), 1868. Kunth, A., Ueber wenig bekannte Crustaceen von Solenhofen (Zeitschr. 

 deutsch. geol. Ges., XXII.), 1870. Woodward, H., Contributions to the Knowledge of Fossil 

 Crustacea (Quar. Journ. Geol. Soc., XXXV.), 1879. 



1 Literattire : 



Miinster, G. Graf zu, Ueber die fossilen langschwanzigen Krebse in den Kalkschiefern von Bayern 

 (Beitr. z. Petrefaktenkunde, Heft. II.), 1839. Meyer, H. von, Neue Gattungen fossiler Krebse, etc., 

 Stuttgart, 1840. Jurassische und triasische Crustaceen (Palaeontogr., IV. p. 44), 1854. Die Proso- 

 poniden (ibid. VII.), I860. Tertiare Decapoden aus den Alpen. etc. (ibid. X.), 1862. Reuss, A. E., 

 Zur Kenutniss fossiler Krabben (Denkschr. Akad. Wiss. Wien., XVII.), 1857. Ueber fossile Krebse 

 aus den Raibler Schichten (Beitr. z. Palaeont. Oesterreichs, I.), 1858. Bell, T., Monograph of the 

 Fossil Malacostracous Crustacea of Great Britain (Palaeont. Soc., 1857-62). Italian, A., Description 

 des Crustacea fossiles (B-ill. Soc. Geol. France [2], XVI.), 1859. Oppd, A., Ueber Jurassische 

 Crustaceen (Palaeont. Mittheil. Museum Bay. Staates I.), 1862. von der Mark, W., Fossile Fische, 

 Krebse und Pflanzen aus der Kreide (Palaeont., XL), 1863. Idem, and Schliiter, C., Neue Fische 

 und Krebse aus der Kreide von Westphalen (ibid. XV.), 1868. Schliiter, C., Die Macruren- 

 Decapoden Westphalens (Zeitschr. deutsch. geol. Ges., XIV.), 1862. Kreide- und Tertiar-Krebse des 

 nordlichen Deutschlands (ibid. XXXI.), 1879.8timpson, W., Fossil Crab from Gay Head (Journ. 



