world catalogue and bibliography of the recent pycnogonida

Shin, P.K.S., M.E. Conneely & B.F. Keegan (1982): Littoral and
benthic investigations on the west coast of Ireland - XV:
The macrobenthic communities of North Bay (Galway Bay). -
Proc. Roy. Ir. Acad., (B) 82 (8): 133-152.
Shishikura, F. & K. Nakamura (1985): Two types of hemocytes,
granular amebocytes and spherule cells, in a pycnogonid,
Propallene longiceps. - Zool. Sci., 2: 571-581.
[circulatory system, cytology]
Sims, R.W. (1980): Animal identification: A reference guide,
Vol. I: Marine and Brackish Water Animals. i-x + 111 pp.
London, etc.: John Wiley & Sons.
Slater, H.H. (1879): On a new genus of Pycnogon and a variety
of Pycnogonum littorale from Japan. - Ann. Mag. Nat.
Hist., (5) 3 (16): 281-283.
Sloan, N.A. (1979): A Pycnogonid-Ophiuroid association. - Mar.
Biol., 52 (2): 171-176. [echinoderm host]
Smaldon, G., D. Heppell & K.R. Watt (1976): Type specimens of
invertebrates (excluding insects) held at the Royal
Scottish Museum, Edinburgh. - Roy. Scott. Mus. Inf. Ser.,
Nat. Hist., 4: IV + 118 pp. [Pycnogonids pp. 58-59]
Smith, E., G. Chapman, R.B. Clark, D. Nichols & J.D. Carthy
(1971): Pycnogonids. In: The Invertebrate Panorama: 30;
London: Weidenfeld & Nicolson.
Smith, S.J. (1873): Pycnogonida. In: Report on the invertebrate
animals of Vineyard Sound...: 415, 544. U.S. Comm. Fish &
Fish., Washington, 1873.
Smith, S.J. & O. Harger (1874): Report on the dredging in the
region of the St. George's Banks in 1872. - Trans. Conn.
Acad. Arts Sci., 3: 1-55.
Smith, S.J. (1885): In: A.E. Verrill. Results of the
explorations made by the steamer Albatross off the
northern coast of the United States in 1883. - Rep. U.S.
Comm. Fish., 1883: 503-601, 38pls.
Snodgrass, R.E. (1938): Evolution of the Annelida, Onychophora
and Arthropoda. - Smiths. Mis. Coll., 97 (6): 1-159.
Snodgrass, R.E. (1951): Comparative studies on the head of the
mandibulate arthropods; i-vii, 1-118; Ithaca: Comstock
Publ. [anatomy]
Snodgrass, R.E. (1952): Textbook of arthropod anatomy: i-viii,
1-363; New York Cornell Univ. Press.
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