Birenheide, R. (1989). Ultrastrukturelle und experimentelle Untersuchungen am Kauapparat und am Darmkanal des Seeigels. Dr-Thesis, Bochum, Germany

Birenheide, R., Amemiya, S., Motokawa, T. (1993). Penetration and storage of sponge spicules in tissues and coelom of spongivorous echinoids. Mar. Biol. 115: 677-683

Birenheide, R., Motokawa, T. (1994). Morphological basis and mechanics of arm movement in the stalked crinoid Metacrinus rotundus (Echinodermata, Crinoida). Mar. Biol. 121: 273-283

Birenheide R., Motokawa T. (1996): To be stiff or to be soft - the dilemma of the echinoid tooth ligament I. Morphology. The Biological Bulletin 190: 218-230

Birenheide R., Tsuchi A., Motokawa T. (1996): To be stiff or to be soft - the dilemma of the echinoid tooth ligament II. Mechanical properties. The Biological Bulletin 190: 231-236

Birenheide R., Motokawa T. (1996): Contractile connective tissue in crinoids, The Biological Bulletin 191: 1-4

Birenheide R., Motokawa T. (1997): Morphology of skeletal cortex in the arms of crinoids (Echinodermata: Crinoidea), Zool. Sci. 14: 753-761

Birenheide R., et al. (1998): Peptides controlling stiffness of connective tissue in sea cucumbers, The Biological Bulleting 194: 253-259

Birenheide R., Motokawa T.: Cholinergic control of stiffness changes in cirri of the stalked crinoid Metacrinus rotundus, in preparation

Birenheide, R. (1990). Functional analysis of the tooth support in echinoids. In: C. De Ridder, P. Dubois, M. C. Lahaye and M. Jangoux (eds.) Echinoderm Research. Balkema, Rotterdam, pp. 203-206

Birenheide, R. (1992). The sea urchin lantern coelom: a circulatory system. In: L. Scalera-Liaci and C. Canicatti (eds.) Echinoderm Research 1991, Proc. 3rd Eur. Conference on Echinoderms. Balkema, Rotterdam, pp. 67-72

Birenheide R., Motokawa T. (1995). Motility and stiffness of the cirri of the stalked crinoid Metacrinus rotundus. R. Emson, Smith A., Campbell A. (eds) Echinoderm Research 1995. A.A. Balkema, Rotterdam, pp. 91-94

Birenheide R., Motokawa T. Crinoid ligaments: catch and contractility. In: R. Mooi and M. Telford (eds.) Echinoderms: San Francisco, Proc. 9th Intl. Conference on Echinoderms. Balkema, Rotterdam, pp. 139-144

Birenheide, R. (1991). Functional anatomy of the sea urchin lantern coelom. Zool. Sci. 8: 1162

Birenheide, R., Motokawa, T., Amemiya, S. (1992). Sponge spicules in the body of spongivorous sea urchins. Zool. Sci. 9: 1251

Birenheide, R., Amemiya, S., Motokawa, T. (1993). Morphology and mechanics of the arm ligament in a stalked crinoid Metacrinus rotundus. Am. Zool. 33: 115 A

Birenheide, R., Amemiya, S., Motokawa, T. (1993). Crinoid enigma: How they move their arms with a muscle that has no antagonist. Annual meeting of the Japanese Society for Comparative Phsyiology and Biochemistry, Sendai, Japan

Birenheide, R., Motokawa, T., Amemiya, S. (1993). Functional morphology of an elastic ligament in the arm of the stalked crinoid Metacrinus rotundus. Zool. Sci. 10, Suppl.: 171

Birenheide, R., Motokawa, T., Amemiya, S. (1993). Arm and stalk movements of the crinoid Metacrinus rotundus. Zool. Sci. 10, Suppl.: 171

Tsuchi, A., Birenheide, R., Motokawa, T. (1993). The tooth support of echinoids is a catch connective tissue. Annual meeting of the Japanese Society for Comparative Phsyiology and Biochemistry, Sendai, Japan

Birenheide R., Motokawa T. (1994). Unusual patterns on the surface of crinoid ossicles. Comparative Physiology and Biochemistry 11: 267

Birenheide R., Motokawa T. (1994). Change of mechanical properties in the cirri of Metacrinus rotundus (Crinoida, Echinodermata). Zool Sci 11 (Suppl.): 119

Birenheide R., Amemiya S., Motokawa T. (1994). Video observations of the movements of the stalked crinoid Metacrinus rotundus (Echinodermata, Crinoidea). B. David et al. (eds) Echinoderms through Time (Echinoderms Dijon). A.A. Balkema, Rotterdam, pp. 199.

Birenheide R., Motokawa T., Amemiya S. (1994). Morphology and biomechanics of the "problematical" ligament in the arm of Metacrinus rotundus. B. David et al. (eds) Echinoderms through Time (Echinoderms Dijon). A.A. Balkema, Rotterdam, p 201.

Tsuchi A., Birenheide R., Motokawa T. (1994). Nervous control of the mechanical properties of the tooth support in echinoids. B. David et al. (eds) Echinoderms through Time (Echinoderms Dijon). A.A.Balkema, Rotterdam, p 911.

Tsuchi A., Birenheide R., Motokawa T. (1994). Morphological and mechanical aspects of the periodontal ligament in echinoids. Zool Sci 11 (Suppl.): 119

Birenheide R., Motokawa T. (1995). Cirri of the sea lily Metacrinus rotundus: their movements and their nervous system. Zool. Sci. 12 (Suppl.): 29

Motokawa T., Birenheide R., Takahashi T., Ohtani M., Muneoka Y. (1995). Bioactive peptides isolated from the sea cucumber Stichopus japonicus - II. Action on catch connective tissue. Zool. Sci. 12 (Suppl.): 105