. The Cambridge natural history. Zoology. MALACOSTRACA LEPTOSTRACA I I I SEEIES 1. LEPTOSTEACA. Division. Phyllocarida. The small shrimp-like Crustacean Nehalia, which is found .. L burrowing in the superficial layers of sand in the littoral and some- times the deeper regions of most seas, has been re- garded, ever since its anatomy was made out by Claus,'^ as a connecting link between En- tomostraca and Malacostraca, and has been placed in a separate group Leptostraca. The segmenta- tion of the body is Malacostracan, save that two extra segments are pre- sent in the abdo- men, and the
. The Cambridge natural history. Zoology. MALACOSTRACA LEPTOSTRACA I I I SEEIES 1. LEPTOSTEACA. Division. Phyllocarida. The small shrimp-like Crustacean Nehalia, which is found .. L burrowing in the superficial layers of sand in the littoral and some- times the deeper regions of most seas, has been re- garded, ever since its anatomy was made out by Claus,'^ as a connecting link between En- tomostraca and Malacostraca, and has been placed in a separate group Leptostraca. The segmenta- tion of the body is Malacostracan, save that two extra segments are pre- sent in the abdo- men, and the paired compound eyes are borne upon stalks. The eight thoracic limbs are all very similar; they are built on the typi- cal biramous plan, and each carries a bract; they have been compared, owing to their flattened, expanded shape, to the 1 Glaus, Arb. Inst. IVicn, viii., 1889, p. Fib. 76.âNehalia geoffroyi, ?, X 20. , , and 2ii(i antennae ; Ah,l^ , 1st and 6tli abdo- minal appendage-s ; , antennary gland ; C, half of caudal fork ; £â , eye ; G^ ventral ganglionic chain ; 11, heart ; /, ; L, npper liver-diverticuhim ; M, adductor muscle of halves of carapace ; MX, palp of 1st maxilla ; 0, ovary ; R, rostrum. (After Clans.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harmer, S. F. (Sidney Frederic), Sir, 1862- ed; Shipley, A. E. (Arthur Everett), Sir, 1861-1927. ed. [London, Macmillan and Co. , Limited; New York, The Macmillan Company
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
